function mapzoom(dir) {
	    		if(dir == 'in') {
	        		campusmap.zoomOut();
	    		} else if(dir == 'out') {
	        		campusmap.zoomIn();
	    		} else { 
				return false; 
	    		}
		}


function init() {
	var upc_centerlat = 34.02202;
	var upc_centerlng = -118.286;
	var upc_centerpoint = new GLatLng(upc_centerlat,upc_centerlng);
	var hsc_centerlat = 34.061619;
	var hsc_centerlng = -118.204436;
	var hsc_centerpoint = new GLatLng(hsc_centerlat,hsc_centerlng);
	var startZoom = 16;
	var deselectCurrent = function() {};
	var smarkers = new Array();
	var photosrc = new Array();
	var locode = new Array();
	var currentmap = 'upc';
	var currentmapid = 1;
	var d = 0;
	var threedee_layer = [new GTileLayer(new GCopyrightCollection(''), 10, 17)];
	threedee_layer[0].getTileUrl = function(tile,zoom) {
    	var z = 17 - zoom;
    	return "./images_3d/index.php?x=" + tile.x + "&y=" + tile.y + "&zoom=" + z;
	}
	threedee_layer[0].getOpacity = function() { return 1.0; }
	var threedee_tiles = [
        G_NORMAL_MAP.getTileLayers()[0],
        threedee_layer[0]
	];
	var threedee_map = new GMapType(threedee_tiles, G_NORMAL_MAP.getProjection(), 'USC');

		// location event loader
		function loadevents(location) { 
	    	var path =  "ws/eo2/feeds/event_list/32/location/"+location;
	    	proxy = "proxy.php?path=" + encodeURIComponent(path);
	    	$.get(proxy, function(data){
	        	if(data.indexOf('No upcoming events') == -1) {
	            	$('.events').html('Events').click(function() { 
						$('#categories .expanded ul').slideUp("normal"); 
						$('#events h3 span').html(location); 
						$('#events .event_list').html(data); 
						$('#events').slideDown(); 
						$('#events.expandable').removeClass('expandable').addClass('expanded'); 
						return false; 
					});
	        	} else {
	            	$('.events').hide();
	        	}
	    	});
		}



	function urldata() {
    	// get url data
    	var ss = location.search.substring(1);
    	if(ss) {
        	c = ss.indexOf('cat=');
        	if(c != -1) {
	    		cat = ss.substring(c+4);
            	if(cat.indexOf('&') != -1) {
					cat = cat.substring(0,cat.indexOf('&'));
	    		}
	    		var cat_id = '';
	    		if(cat=='Galleries/Auditoria') { 
					cat_id = 'galleries'; 
				} else if((cat=='Parks and Plazas') || (cat=='parks')) { 
					cat = 'Park/Plaza'; cat_id = 'park'; 
				} else if(cat=='History Stations') { 
					cat = 'History Station'; cat_id = 'history'; 
				} else if((cat=='Computing Centers') || (cat=='computing')) { 
					cat = 'ITS Computer Centers'; cat_id = 'itscomputer'; 
				} else { 
					cat_id = cat.toLowerCase(); 
				}
        		$('li#'+cat_id+' h4').removeClass('off').addClass('on');

	    		showCat(cat,cat_id);
        	} else if(ss.indexOf('q=') != -1) {
	    		var que = ss.substring(ss.indexOf('q=')+2);
	    		if(que.indexOf('&') != -1) {
                	que = que.substring(0,que.indexOf('&'));
            	}
	    		document.queryform.query.value = que;
	    		searchLoc(que);
			} else if(ss.indexOf('b=') != -1) {
            	var bldg = ss.substring(ss.indexOf('b=')+2);
            	if(bldg.indexOf('&') != -1) {
                	bldg = bldg.substring(0,bldg.indexOf('&'));
            	}
            	document.queryform.query.value = bldg;
            	searchLoc(bldg,1);
			} else if(ss.indexOf('test') != -1) {
	    		var test = 1;
			}

			maptype = ss.indexOf('type=');
			if(maptype != -1) {
	    		showmaptype = ss.substring(maptype+5);
	    		if(showmaptype.indexOf('&') != -1) {
                	showmaptype = showmaptype.substring(0,showmaptype.indexOf('&'));
            	}
	    		if(showmaptype) {
					if(showmaptype=='satellite') { campusmap.setMapType(G_SATELLITE_MAP); } 
					if(showmaptype=='google') { campusmap.setMapType(G_NORMAL_MAP); }
					if(showmaptype=='hybrid') { campusmap.setMapType(G_HYBRID_MAP); }   
	    		}
			}

        	zoomlevel = ss.indexOf('z=');
        	if(zoomlevel != -1) {
            	showzoom = ss.substring(zoomlevel+2);
            	if(showzoom.indexOf('&') != -1) {
                	showzoom = showzoom.substring(0,showzoom.indexOf('&'));
            	}
            	if(showzoom) {
                	if(showzoom=='in') { campusmap.setZoom(17); }
					if(showzoom=='out') { campusmap.setZoom(15); }
            	}
        	}

			markid = ss.indexOf('id=');
			if(markid != -1) {
	    		mark = ss.substring(markid+3);
	    		if(mark.indexOf('&') != -1) {
					mark = mark.substring(0,mark.indexOf('&'));
	    		}
	    		if(mark) {
                	if(mark.indexOf('\,') != -1) {
                    	marklist = mark.split('\,');
		    			for(j=0; j<marklist.length; j++) {
        	        		for(i=0; i<markers.length; i++) {
	                    		showid = markers[i].showid();
                    	    	if(showid == marklist[j]) {
            	                	markers[i].showmarker(); 
    	                    	}
	                		}
		    			}
                	}

					for(i=0; i<markers.length; i++) {
		    			showid = markers[i].showid();
		    			if(showid == mark) {
							markers[i].showmarker(); 
							markers[i].getinfo(); 
							markphoto = markers[i].showphoto(); 
							var locid = markers[i].id; 
							if(locode[locid]) { loadevents(locode[locid]); }
						}
					}
	    		}
			}
    	}
	}


		// pin marker icon
		var icon = new GIcon();
		icon.image = "gui/pin_marker.png";
		icon.shadow = "gui/pin_shadow.png";
		icon.iconSize = new GSize(16, 38);
		icon.shadowSize = new GSize(31, 38);
		icon.iconAnchor = new GPoint(9, 37);
		icon.infoWindowAnchor = new GPoint(6, 4);

		// parking marker icon
		var parking = new GIcon();
		parking.image = "gui/parking_marker.png";                                       
		parking.iconSize = new GSize(17, 17);
		parking.shadowSize = new GSize(26, 17);
		parking.iconAnchor = new GPoint(9, 9);
		parking.infoWindowAnchor = new GPoint(7, 5);

		// entrance marker icons
		var entrance1 = new GIcon();
		entrance1.image = "gui/entrance1.png";
		entrance1.iconSize = new GSize(73, 42);
		entrance1.iconAnchor = new GPoint(10, 1);
		entrance1.infoWindowAnchor = new GPoint(10, 1);

		var entrance2 = new GIcon();
		entrance2.image = "gui/entrance2.png";
		entrance2.iconSize = new GSize(73, 42);
		entrance2.iconAnchor = new GPoint(10, 1);
		entrance2.infoWindowAnchor = new GPoint(10, 1);

		var entrance3 = new GIcon();
		entrance3.image = "gui/entrance3.png";
		entrance3.iconSize = new GSize(87, 28);   
		entrance3.iconAnchor = new GPoint(1, 10);
		entrance3.infoWindowAnchor = new GPoint(1, 10);

		var entrance4 = new GIcon();
		entrance4.image = "gui/entrance4.png";
		entrance4.iconSize = new GSize(73, 42);
		entrance4.iconAnchor = new GPoint(9, 42);
		entrance4.infoWindowAnchor = new GPoint(9, 42);

		var entrance5 = new GIcon(); 
		entrance5.image = "gui/entrance5.png";
		entrance5.iconSize = new GSize(73, 42);
		entrance5.iconAnchor = new GPoint(9, 42);
		entrance5.infoWindowAnchor = new GPoint(9, 42);

		var entrance6 = new GIcon();
		entrance6.image = "gui/entrance6.png"; 
		entrance6.iconSize = new GSize(87, 28);
		entrance6.iconAnchor = new GPoint(87, 19);
		entrance6.infoWindowAnchor = new GPoint(87, 19);

		var entrance7 = new GIcon();
		entrance7.image = "gui/entrance7.png";
		entrance7.iconSize = new GSize(87, 28);
		entrance7.iconAnchor = new GPoint(87, 19);
		entrance7.infoWindowAnchor = new GPoint(87, 19);

		var entrance8 = new GIcon();
		entrance8.image = "gui/entrance8.png";
		entrance8.iconSize = new GSize(73, 42);
		entrance8.iconAnchor = new GPoint(9, 42);
		entrance8.infoWindowAnchor = new GPoint(9, 42);

		var campi = new Array();
		campi[1] = 'University Park Campus';
		campi[2] = 'Health Sciences Campus';
		campi[3] = 'Marina Del Rey';
		campi[4] = 'Catalina';
		campi[5] = 'Downtown Los Angeles';
		campi[6] = 'Children\'s Hospital';
		campi[7] = 'Alhambra';
		campi[8] = 'Orange County Center';
		campi[9] = 'State Capital Center \(Sacramento\)';
		campi[10] = 'Washington, DC, Center';
		campi[11] = 'Pasadena';
		campi[12] = 'Hong Kong';
		campi[13] = 'Mexico City';
		campi[14] = 'Taipei';
		campi[15] = 'Tokyo';
		campi[16] = 'Downtown Arts District';

		function initializePoint(pointData) {
	    	var point = new GLatLng(pointData.latitude, pointData.longitude);
	    	pointData.campusname = campi[pointData.campus];
	    	if(pointData.type == 'Entrance') {
	        	var entrance_number = pointData.name.substr(9);
	        	switch(entrance_number) {
	        		case '1': var marker = new GMarker(point, {icon:entrance1}); break;
	        		case '2': var marker = new GMarker(point, {icon:entrance2}); break;
					case '3': var marker = new GMarker(point, {icon:entrance3}); break;
					case '4': var marker = new GMarker(point, {icon:entrance4}); break;
					case '5': var marker = new GMarker(point, {icon:entrance5}); break;
					case '6': var marker = new GMarker(point, {icon:entrance6}); break;
					case '7': var marker = new GMarker(point, {icon:entrance7}); break;
					case '8': var marker = new GMarker(point, {icon:entrance8}); break;
					default: var marker = new GMarker(point, {icon:icon,title:pointData.name});
				}
	    	} else {
				if(pointData.type == 'Parking') {
	            	var marker = new GMarker(point, {icon:parking,title:pointData.name});
				} else {
		    		var marker = new GMarker(point, {icon:icon,title:pointData.name});
				}
	    	}

	    	var listItem = document.createElement('li');
	    	listItem.setAttribute("id",pointData.id);
	    	var listItemLink = listItem.appendChild(document.createElement('a'));
	    	listItemLink.href = "#";
	    	listItemLink.innerHTML = pointData.name;
			if(pointData.code) {
	    		listItemLink.innerHTML += ' ('+pointData.code+')'; 
			}	

	    	var inputForm = document.createElement("form");
	    	inputForm.setAttribute("id","info");
	    	inputForm.setAttribute("action","");
	    	inputForm.onsubmit = function() { storeMarker(); return false; };

	    	blankRE=/^[\s]*$/;

	    	var detail = '<div class="point_detail" id="info_'+pointData.id+'">' + '<h4>' + pointData.name; 
	    	if(pointData.code != "") { 
				detail = detail.concat(' <abbr>(' + pointData.code + ')</abbr>');
	    	}
	    	detail = detail.concat('</h4>');

	    	if(pointData.photo != "") {
				detail = detail.concat('<img id="location_photo" class="locphoto" src="gui/spacer.gif" width="220" height="100" alt="'+pointData.name+'" />');
				photosrc[pointData.id] = '/venues/' + pointData.photo;
				locode[pointData.id] = pointData.code;
	    	} 

	    	detail = detail.concat('<p class="short_description">',pointData.short,'</p>');
	    	if(pointData.address) {
				detail = detail.concat('<p class="address">',pointData.address,'</p>');
	    	}

	    	if(pointData.url != "") {
	        	detail = detail.concat('<a class="website" href="',pointData.url,'">Website</a>');
	    	}

	    	if(pointData.code != "") {
				detail = detail.concat('<a class="accessibility" href="http://fmsmaps2.usc.edu/gpix/bldgdetailsA_Z/ADA_Detail_',pointData.code,'.pdf">Accessibility</a>');
	    	}
	    	detail = detail.concat('<span class="events"></span><br clear="left" /></div>');
	    	detail = detail.concat('</div>');

			if((pointData.code != "")||(pointData.url != "")) { detail = detail.concat('<br clear="left" />'); }
	    	detail = detail.concat('</div>');
	    	pointData.detail = detail;
	    	inputForm.innerHTML = detail;

	    	var focusPoint = function() {
				deselectCurrent(); 
				listItem.className = 'current';
				deselectCurrent = function() { listItem.className = ''; }
				marker.openInfoWindow(inputForm); 
	        	utility_links();
				if(photosrc[listItem.id]) {
	 	    		if(!document.getElementById("location_photo")) {
						timerload(photosrc[listItem.id]);
		    		} else {
						$('#location_photo').attr("src",photosrc[listItem.id]);
		    		}
				}
				if(locode[listItem.id]) { loadevents(locode[listItem.id]); }
				return false;
	    	}

	    	GEvent.addListener(marker, 'click', focusPoint);
	    	listItemLink.onclick = focusPoint;

	    	pointData.showmarker = function() {
				if (!pointData.isvisible && !pointData.def) {
		    		document.getElementById('sidebar-list').appendChild(listItem);
		    		pointData.isvisible = 1;
		    		campusmap.addOverlay(marker);
				} else {
		    		if(document.getElementById('locations').checked = true) {
						document.getElementById('sidebar-list').appendChild(listItem);
		    		}
				}
	    	}

	    	pointData.hidemarker = function() {
				if (pointData.isvisible && !pointData.def) {
		    		$('#sidebar-list #marker'+pointData.id).remove();
		    		campusmap.removeOverlay(marker);
		    		pointData.isvisible = 0;
				}
	    	}

	    	pointData.showdef = function() {
	        	if (!pointData.isvisible) {
		    		campusmap.addOverlay(marker);
		    		pointData.isvisible = 1;
				}
				pointData.def = 1;
	    	}

	    	pointData.isdef = function() {
				if(pointData.def) {
		    		return true;
				} else { 
		    		return false; 
				}
	    	}

	    	pointData.hidedef = function() {
	        	if (pointData.isvisible) {
	            	campusmap.removeOverlay(marker);
		    		pointData.isvisible = 0;
	        	}
				pointData.def = 0;
	    	}

	    	pointData.showid = function() {
	        	return pointData.id;
	    	}

	    	pointData.showname = function() {
				return pointData.name;
	    	}

	    	pointData.showphoto = function() {
				return pointData.photo;
	    	}

	    	pointData.showlat = function() {
				return pointData.latitude;
	    	}

	    	pointData.showlong = function() {
	        	return pointData.longitude;
	    	}

	    	pointData.showcode = function() {
	        	if(pointData.code) {
	            	return pointData.code;
	        	} else {
	            	return false;
	        	}
	    	}

	    	pointData.showvis = function() {
				if(pointData.isvisible) {
		    		return true; 
				} else {
		    		return false;
				}
	    	}

	    	pointData.getinfo = function() {
				marker.openInfoWindow(inputForm); 
	        	utility_links(); 
	        	if(pointData.photo) {
	            	if(!document.getElementById("location_photo")) {
	        			timerload('/venues/'+pointData.photo);
	            	} else {
						$('#location_photo').attr("src",'/venues/'+pointData.photo);
		    		}
	        	}
				if(locode[pointData.id]) { loadevents(locode[pointData.id]); }
	    	}

	    	pointData.hidemarker();	
		}

		function timerload(which) {  
	    	window.setTimeout(function() {
	        	$('#location_photo').attr("src",which);
	    	}, 1250);
		}

		// search function

		function searchLoc(which,bldg) {
	    	if(bldg) {
				var searchscript = 'search_bldg.php';
	    	} else {
				var searchscript = 'search.php';
	    	}

			if(smarkers) {
	    		for (id in smarkers) {
	        		is_visible = smarkers[id].isvisible;
	        		if(is_visible) {
	            		smarkers[id].hidemarker();
	        		}
	    		}
			}

	    	// if all locations are currently checked by default
	    	allchecked = document.getElementById('locations').checked;
	    	if(allchecked) {
				document.getElementById('locations').checked = false;
				hideDefaults();
	    	}

	    	// hide buildings and close categories if open
	    	hideMarked(); 
			$("h4.on").removeClass("on").addClass("off"); 
			$('#events').hide();

	    	for (id in markers) {
				is_visible = markers[id].showvis();
				if(is_visible) {
		    		markers[id].hidemarker();
				}
	    	}

	    	$('.expanded ul:visible').slideUp();
	    	$('#sidebar-list').remove();
	    	$('.expanded').removeClass('expanded').addClass('expandable');

	    	// show search results
	    	$('#search_results:hidden').show();
	    	$('#search_results').addClass('expanded');
	    	$('#search_results').append('<ul id="sidebar-list"></ul>');

	    	if(!which) {
				var query = document.getElementById('query').value;
	    	} else {
				var query = which;
	    	}

	    	if(query.length > 1) {
	    		var getVars = "?query=" + query.replace(/&/g, ".ampersand.");
	    		GDownloadUrl(searchscript + getVars, function(data,responseCode) {	
					eval(data);
					if(smarkers.length) {
		    			var bc_lat = 0;
		    			var bc_long = 0;
		    			var i = j = k = 0;
	        			var otherc = mapindex = lastmap = '';
		    			var offmap = new Array;
		    			for(id in smarkers) {
							i++;
							if(smarkers[id].campus == currentmapid) {
			    				initializePoint(smarkers[id]);
			    				smarkers[id].showmarker();
			    				bc_lat = bc_lat + smarkers[id].showlat();
			    				bc_long = bc_long + smarkers[id].showlong(); k++
							} else {
			    				if(smarkers[id].campus) {
									otherc = smarkers[id].campus;
									offmap[j] = otherc+'|'+id;
									j++;
			    				}
							}
		    			}

	            		if(currentmapid == 2) { var zip = 90033; } else { var zip = 90089; }

		    			bc_lat = (bc_lat / i);
		    			bc_long = bc_long / i;
		    			var bc = new GLatLng(bc_lat,bc_long);
						if(!k) { 
							$('#sidebar-list').append('<li class="other">Sorry, there are no matching locations on the '+currentmap.toUpperCase()+' map.</li>'); 
						}

		    			if(j) {
							$('#sidebar-list').append('<li class="other">There are <strong>'+j+'</strong> search results within other campuses and maps. </li>');
	            			offmap.sort();
			    			for (k=0; k<offmap.length; k++) { 
	                	    	locationindex = offmap[k].substr(offmap[k].indexOf('|')+1);
	                	    	mapindex = offmap[k].substr(0,offmap[k].indexOf('|'));

	  		            		if(!lastmap || (mapindex != lastmap)) { 
	                    			$('#sidebar-list').append('<li class="offcamp"><h4>'+campi[mapindex]+'</h4></li>'); lastmap = mapindex;
	                	    	}
	                	    	initializePoint(smarkers[locationindex]);
	                	    	smarkers[locationindex].showmarker(); 
	                	    	$('#sidebar-list li#'+smarkers[locationindex].id).click(function() { 
									// switch campus 
									if(smarkers[locationindex].campus == 2) { 
	    								currentmap = 'hsc'; 
	    								currentmapid=2;
	    								$('li#patient_care:hidden').show(); 
										$('li#athletics:visible').hide();
	    								$('li#upc a').removeClass('on'); 
	    								$('li#hsc a').addClass('on'); 
	    								campusmap.setCenter(hsc_centerpoint, startZoom, G_HYBRID_MAP); 
									} else if(smarkers[locationindex].campus == 1) {
	    								currentmap = 'upc'; currentmapid=1;
	    								$('li#patient_care:visible').hide(); 
										$('li#athletics:hidden').show();
	    								$('li#hsc a').removeClass('on');
	    								$('li#upc a').addClass('on');
	    								campusmap.setCenter(upc_centerpoint, startZoom, threedee_map); 
									}
								});
	            			} 
		    			}

						if((smarkers.length==1) && (smarkers[0].campus == currentmapid)) {
							smarkers[0].getinfo(); 
		    			}
					} else {
		    			if(currentmapid == 2) { var zip = 90033; } else { var zip = 90089; }
		    			$('#search_results #sidebar-list').append('<li>Sorry, there were no results for your search. <a href="http://maps.google.com/maps?q='+query+'+near+'+zip+'">Search Google Maps for more results.</a></li>');
					} 

					utility_links();
	    		}); 
			} else {
			$('#search_results #sidebar-list').append("<li>Please try entering a longer search term.</li>");
	    	}
		}

		function urlencode(clearString) {
	  		var output = '';
	  		var x = 0;
	  		clearString = clearString.toString();
	  		var regex = /(^[a-zA-Z0-9_.]*)/;
	  		while (x < clearString.length) {
	    		var match = regex.exec(clearString.substr(x));
	    		if (match != null && match.length > 1 && match[1] != '') {
	        		output += match[1];
	      			x += match[1].length;
	    		} else {
	      			if (clearString[x] == ' ')
	        			output += '+';
	      			else {
	        			var charCode = clearString.charCodeAt(x);
	        			var hexVal = charCode.toString(16);
	        			output += '%' + hexVal.toUpperCase();
	      			}
	      			x++;
	    		}
	  		}  
	  		return output;
		}

		function hideSearched() {
	    	$("#search_results:visible").slideUp();
	    	for (id in smarkers) {
				is_visible = smarkers[id].isvisible;
				if(is_visible) {
		    		smarkers[id].hidemarker();
				}
	    	}
		}

		function hideMarked() {
	    	for (id in markers) {
				is_visible = markers[id].showvis();
				if(is_visible) {
		    		markers[id].hidemarker();
				}
	    	}  
		}

		function showCat(type,type_id) {
	    	$('#sidebar-list').remove();
	    	hideSearched(); hideMarked();
	    	document.getElementById('locations').checked = false;
	    	if(type_id) {
				$('#'+type_id).append('<ul id="sidebar-list"></ul>');
	    	} else {
				$('#categories').append('<ul id="sidebar-list"></ul>');
	    	}
	    	var mc = 0;
	    	for (id in markers) {
				if((markers[id].type == type)&&(markers[id].campus==currentmapid)) {
		    		markers[id].showmarker(); mc++;
				}
	    	}
	    	if(!mc) { $('#sidebar-list').html('<li>Sorry, there are no locations of this type on this campus.</li>'); }
	    	utility_links();
		}

		function hideCat(type) {
	    	hideSearched();
	    	hideMarked();
	    	$('#sidebar-list').remove();
	    	for (id in markers) {
				if(markers[id].type == type) {
		    		markers[id].hidemarker();
				}
	    	}
	    	utility_links();
		}

		function showAllNames() {
	    // remove any sidebar lists
	    	$('#sidebar-list').remove();

	    // uncheck default checkboxes except for 'all locations'
	 	//   $('#defaults input').each(function() { this.checked = false; });
	    	document.getElementById('locations').checked = true;

	    // hide search results
	    	hideSearched();

	    // unselect building types
	    	$("#building_types li h4.on").removeClass("on").addClass("off");

	    	$('#building_names').append('<ul id="sidebar-list"></ul>');
	    	var lastmarker = '';
	    	for (id in markers) { 
				markername = markers[id].showname();
				if(markername != lastmarker) {
					lastmarker = markername;
					if(markers[id].campus==currentmapid) {
		    			markers[id].showmarker(); 
					}
				}
	    	}
		}

		function hideAll() {
	    	$('#sidebar-list').remove();
	    	for (id in markers) {
	        	markers[id].hidemarker();
	    	}
		}

		function showDefault(type) {
	    	for (id in markers) {
				if (markers[id].type == type) {
		    		markers[id].showdef();
		    		markers[id].def = 1;
				}
	    	}
		}

		function hideDefault(type) {
	    	for (id in markers) {
				if (markers[id].type == type) {
		    		markers[id].hidedef();
		    		markers[id].def = 0;
				}
	    	}
		}

		function hideDefaults() {
	    	for (id in markers) {
				markers[id].hidedef();
				markers[id].def = 0;
	    	}
		}

		function get_window_size(which) {
	    	var window_width = window_height = 0;
	    	if( typeof(window.innerWidth) == 'number' ) {//Non-IE
				window_width = window.innerWidth;
				window_height = window.innerHeight;
	    	} else if(document.documentElement && (document.documentElement.clientWidth)) {//IE 6+ in 'standards compliant mode'
				window_width = document.documentElement.clientWidth;
				window_height = document.documentElement.clientHeight;
	    	} else if(document.body && (document.body.clientWidth)) {//IE 4 compatible
				window_width = document.body.clientWidth;
				window_height = document.body.clientHeight;
	    	}
	    	if(which=='width') { return window_width; } else { return window_height; }
		}

	    var windowheight = (get_window_size("height") - 158);
	    document.getElementById('map').style.height = windowheight + "px";
	    document.getElementById('sidebar').style.height = (windowheight+27) + "px";
	    var type;
	    var allTypes = { 'All':[] };

	    campusmap=new GMap2(document.getElementById("map"));
	    geocoder = new GClientGeocoder();
	    campusmap.removeMapType(G_NORMAL_MAP);
	    campusmap.addMapType(threedee_map);
	    campusmap.enableScrollWheelZoom();

	    // restrict the range of zoom levels
	    var mt = campusmap.getMapTypes();
	    for (var i=0; i<mt.length; i++) {
			mt[i].getMinimumResolution = function() {return 10;}
			mt[i].getMaximumResolution = function() {return 17;}
	    }

	    // monitor the window resize event and let the map know when it occurs
	    if (window.attachEvent) {
			window.attachEvent("onresize", function() {
		    	windowheight = (get_window_size("height") - 158);
		    	document.getElementById('map').style.height = windowheight + "px";
		    	document.getElementById('sidebar').style.height = (windowheight+27) + "px";
			});
	    } else {
			window.addEventListener("resize", function() {
		    	windowheight = (get_window_size("height") - 158);
		    	document.getElementById('map').style.height = windowheight + "px";
		    	document.getElementById('sidebar').style.height = (windowheight+27) + "px";
			} , false);
	    }

	    campusmap.addControl(new GMapTypeControl(),new GControlPosition(G_ANCHOR_BOTTOM_RIGHT, new GSize(3,16)));

		// hash?
		if(window.location.hash && (window.location.hash.indexOf('hsc') != -1)) {
			currentmapid=2; currentmap = 'hsc';
			campusmap.setCenter(hsc_centerpoint,startZoom,G_HYBRID_MAP);
	    	$('li#upc a').removeClass('on'); 
	    	$('li#hsc a').addClass('on');
	    	$('li#patient_care:hidden').show(); $('li#athletics:visible').hide();
		} else {
	    	campusmap.setCenter(upc_centerpoint, startZoom, threedee_map);
	    	$('li#patient_care:visible').hide(); $('li#athletics:hidden').show();
		}

	    GEvent.addListener(campusmap, "dragend", function() {
	    	utility_links();
	    });

	    hscpoly = new GPolygon([
	        new GLatLng(34.060633,-118.214403),
	        new GLatLng(34.061081,-118.213797),
	        new GLatLng(34.061137,-118.213679),
	        new GLatLng(34.062286,-118.211871),
	        new GLatLng(34.064872,-118.208234),
	        new GLatLng(34.065014,-118.207998),
	        new GLatLng(34.065085,-118.207676),
	        new GLatLng(34.065277,-118.206298),
	        new GLatLng(34.065321,-118.206158),
	        new GLatLng(34.065503,-118.205037),
	        new GLatLng(34.065543,-118.203894),
	        new GLatLng(34.065628,-118.203776),
	        new GLatLng(34.06561,-118.202983),
	        new GLatLng(34.064877,-118.19868),
	        new GLatLng(34.064792,-118.198621),
	        new GLatLng(34.064521,-118.197044),
	        new GLatLng(34.062708,-118.197902),
	        new GLatLng(34.062606,-118.197876),
	        new GLatLng(34.062072,-118.198208),
	        new GLatLng(34.06197,-118.198246),
	        new GLatLng(34.060695,-118.199029),
	        new GLatLng(34.057704,-118.200912),
	        new GLatLng(34.055988,-118.202006),
	        new GLatLng(34.055953,-118.202108),
	        new GLatLng(34.054691,-118.20294),
	        new GLatLng(34.054979,-118.203653),
	        new GLatLng(34.058197,-118.210997),
	        new GLatLng(34.05889,-118.212665),
	        new GLatLng(34.058993,-118.212837),
	        new GLatLng(34.05905,-118.212934),
	        new GLatLng(34.060135,-118.213969),
	        new GLatLng(34.06041,-118.214237),
			new GLatLng(34.060633,-118.214403)
	    ], '#900', 2, 0.8, '#900', 0.1);
	    campusmap.addOverlay(hscpoly);

	    var mark;
	    var ss = location.search.substring(1);
		markid = ss.indexOf('id=');
		if(markid != -1) {
		    mark = ss.substring(markid+3);
		    if(mark.indexOf('&') != -1) {
	            mark = mark.substring(0,mark.indexOf('&'));
		    }
	    }
	    markers.sort(sortbytitle);

	    for(id in markers) {
			initializePoint(markers[id]);
			allTypes[markers[id].type] = true;
	    }

	// map navigation functions

	    // default checkboxes
	    $('input.default').each(function() { 
			showDefault(this.value); 
			this.checked = true; 
	    });

	    // search field
	    $('#queryform').submit(function() { searchLoc(); return false; });

	    var str = "Search the map";
	    var q = document.getElementById('query');
	    q.value = str;
	    q.onfocus = function() {
	        if(q.value == str) {
	            q.value='';
	            q.style.color="#000";
	        }
	    }
	    q.onblur = function() {
	        if(q.value == '') {
	            q.value=str;
	            q.style.color="#aaa";
	        } else {
	            q.style.color="#000";
	        }
	    }

	    // map switcher 
	    $('#maps_menu li.c a').click(function() {
			var switchmap = (this.parentNode).id;

			// URL hash
			window.location.hash = switchmap;

			// tabs
			$('#'+currentmap+' a').removeClass('on');
			$('#'+switchmap+' a').addClass('on');

			currentmap = switchmap;
			$('#sidebar-list').remove();
			hideSearched(); 
			hideMarked();
			$("h4.on").removeClass("on").addClass("off"); 
			$('#events').hide();

			// hide any marked buildings
			hideAll();

	        // close 'Locations By Name' if open
	        $('.expanded#building_names').removeClass("expanded").addClass("expandable");

	        // open categories if closed
	        $('.expandable#building_types').removeClass("expandable").addClass("expanded");
	        $('#categories #building_types ul:hidden').slideDown();

	        // uncheck any selected categories
	        $("#building_types li h4.on").removeClass("on").addClass("off");

			// for HSC,
			if(switchmap == 'hsc') {
		    // set map id to 2
		    	currentmapid=2;

		    // set center, zoom level, overlay
		    	campusmap.setCenter(hsc_centerpoint,startZoom,G_HYBRID_MAP);
		    	$('li#patient_care:hidden').show(); $('li#athletics:visible').hide();
			} else
			// for UPC
			if(switchmap=='upc') {
		    	// set map id to 1
		    	currentmapid = 1;

		    	// set center, zoom level, overlay
		    	campusmap.setCenter(upc_centerpoint, startZoom, threedee_map);
		    	$('li#patient_care:visible').hide(); $('li#athletics:hidden').show();
			}
			utility_links();
			return false;
	    });

	    // location list behavior  
	    $("#categories li#building_names h3").mouseup(function() {
			t = this.parentNode.className; 
			if(t=='expandable') {
		    	showAllNames();
	        }
	    });  

	    // expandable menu behavior
	    $("#categories li h3").mouseup(function(){
			t = this.parentNode.className;
			if(t.indexOf('expandable') != -1) {
		    	$('#categories .expanded ul').slideUp("normal"); $('#categories .expanded').removeClass("expanded").addClass("expandable");
		    	$(this.parentNode).removeClass("expandable").addClass("expanded");
		    	$(this.nextSibling).slideDown("normal");
		    	return false;
			} else { 
		    	if(t.indexOf('expanded') != -1) { 
					$(this.parentNode).removeClass("expanded").addClass("expandable");
					$(this.nextSibling).slideUp("normal");
		    	}
			}
	    });

	    // search results, events initially hidden
	    $('#search_results').hide(); 
		$('#events').hide();

	    // building category behavior
	    $("#building_types li h4").mouseup(function() {   
			$('#events:visible').hide();
			t = this.className; 
			if(t=='off') {
				$("#building_types li h4.on").removeClass("on").addClass("off");
				$(this).removeClass("off").addClass("on");
				deselectCurrent();
				if(this.innerHTML=='Parks and Plazas') {
		    		var category = 'Park/Plaza';
				} else if(this.innerHTML=='History Stations') {
		    		var category = 'History Station';
	        	} else if(this.innerHTML=='Computing Centers') {
	            	var category = 'ITS Computer Centers';
				} else {
		    		var category = this.innerHTML;
				}
				showCat(category,this.parentNode.id);
	    	} else {
				if(t=='def_on') {
		    		$(this).removeClass("def_on").addClass("off");
		    		hideDefault(this.innerHTML);
				} else {
		    		$(this).removeClass("on").addClass("off");
		    		$('.expanded#building_names ul').slideUp(); 
					$('.expanded#building_names').removeClass('expanded').addClass('expandable');
		    		hideCat(this.innerHTML);
				}
	    	}
	    });

	    // display markers behavior (checkboxes)
	    $("#defaults input").mouseup(function() {
			t = this.checked;
			if(!t) {
		    	if(this.value=='Locations') { 
	                $("#defaults input").each(function() { this.checked = false; });
					for(id in markers) {
			    		if(markers[id].campus == currentmapid) {
							markers[id].showdef();
			    		}
					}
		    	} else {
					allchecked = document.getElementById('locations').checked;
					if(allchecked) {
			    		document.getElementById('locations').checked = false;
			    		hideDefaults();
					}
					showDefault(this.value);
		    	}
			} else {
	            if(this.value=='Locations') { 
	                for(id in markers) {
	                    markers[id].hidedef();
	                }
	           } else {
	                hideDefault(this.value);
	           }   
			}
		});

	    $('#print').click(function() {
	        utility_links();
	    });

	    if(ss) { urldata(); }

		function createMarker(latlng, html) {
			var marker = new GMarker(latlng);
			GEvent.addListener(marker, 'click', function() {
				var markerHTML = html;
				marker.openInfoWindowHtml(markerHTML);
				utility_links();
			});
			return marker;
		}

		// print, email functions
		function utility_links() {
	    	var utility = '?d=';
	    	$('#defaults input').each(function() {
	        	if(this.checked) {
	            	utility += this.value + '+';
	        	}
	    	});

			utility += '&l=';

			for(id in smarkers) {
	    		if(smarkers[id].isvisible) {
					utility += smarkers[id].id + '+';
	    		}
			}

			for(id in markers) {
				is_visible = markers[id].showvis();
				is_def = markers[id].isdef();
	        	if(is_visible && !is_def) {
	            	utility += markers[id].id + '+';
				}
	    	}

	    	var infowindowid = $('form#info .point_detail').attr('id');
	    	if(infowindowid && !(campusmap.getInfoWindow().isHidden()) ) {
				infowindowid = infowindowid.substring(5);
				utility += '&m='+infowindowid;
	    	}

	    	utility += '&x=' + campusmap.getCenter().lat();
	    	utility += '&y=' + campusmap.getCenter().lng();
	    	utility += '&z=' + (17 - campusmap.getZoom());
	    	currentmaptype = campusmap.getCurrentMapType();
			if(currentmaptype == threedee_map) { currentmaptype = '3d'; }
			if(currentmaptype == G_SATELLITE_MAP) { currentmaptype = 'satellite'; }
			if(currentmaptype == G_NORMAL_MAP) { currentmaptype = 'google'; }
			if(currentmaptype == G_HYBRID_MAP) { currentmaptype = 'hybrid'; }
	    	utility += '&t='+currentmaptype;

	    	if(document.getElementById('print')) {
				if(currentmapid==2) {
					document.getElementById('print').href = 'http://www.usc.edu/assets/maps/hsc_map.pdf';
					document.getElementById('directions').href = 'http://www.google.com/maps?f=q&source=s_q&hl=en&geocode=&q=1975+zonal+ave+los+angeles&sll=34.097875,-118.234863&sspn=0.141296,0.244789&ie=UTF8&ll=34.06345,-118.205767&spn=0.008195,0.013669&z=16&iwloc=A&iwstate1=dir';
				} else {
					document.getElementById('print').href = 'http://www.usc.edu/private/about/visit_usc/USC_UPC_map_color.pdf'
					document.getElementById('directions').href = 'http://www.google.com/maps?f=q&source=s_q&hl=en&geocode=&q=http://www.google.com/maps?f=q&source=s_q&hl=en&geocode=&q=3551+trousdale+pkwy+los+angeles&sll=37.0625,-95.677068&sspn=34.587666,62.666016&ie=UTF8&ll=34.021684,-118.285246&spn=0.017678,0.030599&z=16&iwloc=near&iwstate1=dir';
				}
				$('#print').attr('href','print.php' + utility);
	    	}
		}

		$('#print').click(function() { 
			utility_links(); 
			window.location($('#print').attr('href')); 
			return false(); 
		});

		// title sort
		function sortbytitle(a, b) {
	    	var x = a.name.toLowerCase();
	    	var y = b.name.toLowerCase();
	    	return ((x < y) ? -1 : ((x > y) ? 1 : 0));
		}

    utility_links();
}