var last_image = '';
function preloadimages() {
  if(document.images) {
	 if(!document.a_images) document.a_images=new Array();
	 var i, j=document.a_images.length, args=preloadimages.arguments;
	 for(i=0; i<args.length; i++){
         if (args[i].indexOf("#")!=0){ 
		    document.a_images[j]=new Image;
	        document.a_images[j++].src=args[i];
		 }
	 }
	 last_image = args[0]
   }
	var map = document.getElementById("map");	
	if (GBrowserIsCompatible()) {
		var gmap = new GMap2(map);
		gmap.addControl( new GLargeMapControl() );
		gmap.addControl( new GMapTypeControl()) ;
		gmap.addControl( new GOverviewMapControl(new GSize(100,100)) );		
		gmap.setCenter ( new GLatLng(lat_deci,long_deci), 12 );	
		var point = new GLatLng(lat_deci,long_deci);
		gmap.addOverlay( new GMarker(point));
	} else {
		alert("Sorry, your browser cannot handle Google Maps");
	}
}
function swap_image(a, b) {
	switch(a) {
		case 1:
		  last_image = b;
          document.mainpic.src = b;
		  break;
		case 2:
          document.mainpic.src = b;
		  break;
		case 3:
          document.mainpic.src = last_image;
		  break;
	}
}