ns4 = (document.layers)? true:false;
		ie4 = (document.all)? true:false;
		var timeoutID = 0;

		var ext = ".gif";

		function preload() {
			this.length = preload.arguments.length;
			for (var i = 0; i < this.length; i++) {
				this[i+1] = new Image();
				this[i+1].src = preload.arguments[i];
			}
		}

		var currentSect = "";
		var currentPage = "";
        
		function turnOn(i) {
			if (currentSect != document.images[i].name && currentPage != document.images[i].name)
			{
				var src = document.images[i].src;
				var off = src.lastIndexOf(".gif");
				if (off != -1)
					ext = ".gif";
				else {
					off = src.lastIndexOf(".jpg");
					ext = ".jpg";
				}
				if (src.substring(off-2,off)!="-p") {
					newsrc = src.substring(0,off) + "-p";
					document.images[i].src = newsrc + ext;
				}
			}			
		}
        
		function turnOn2(i, layerid) {

			img = eval('document.' + layerid + '.document.images[i]');
			if (currentSect != img.name && currentPage != img.name)
			{			
				var src = img.src;
				var off = src.lastIndexOf(".gif");
				if (off != -1)
					ext = ".gif";
				else {
					off = src.lastIndexOf(".jpg");
					ext = ".jpg";
				}
				if (src.substring(off-2,off)!="-p") {
					var newsrc = src.substring(0,off) + "-p";
					img.src = newsrc + ext;
				}
			}
		}

		function checkturnOn(i, layerid){
			if (timeoutID!=0)
				clearTimeout(timeoutID);
			
			if (ns4) {
				turnOn2(i, layerid)
			}
			else {
				turnOn(i)
			}
		}
			
			

		function turnOff(i) {
			if (currentSect != document.images[i].name && currentPage != document.images[i].name)
			{
				var src = document.images[i].src;
				var on = src.lastIndexOf("-p");
				if (on != -1) {
					var newsrc = src.substring(0,on);
					document.images[i].src = newsrc + ext;
				}
			}
		}

		function turnOff2(i, layerid) {
			img = eval('document.' + layerid + '.document.images[i]');
			if (currentSect != img.name && currentPage != img.name)
			{
				var src = img.src;
				var on = src.lastIndexOf("-p");
				if (on != -1)
			
				var newsrc = src.substring(0,on);
				img.src = newsrc + ext;
			}
		}

		function checkturnOff(i, layerid){
			
			if (ns4) {
				turnOff2(i, layerid)
			}
			else {
				turnOff(i)
			}
		}

		function showImg(i,filename) {
			if (document.images) 
				document.images[i].src = filename;
		}

		function paintButton(img) {
			src = document.images[img].src;
			off = src.lastIndexOf(".");
			ext = src.substr(off,4);
			if (src.substring(off-2,off)!="-p")
				newsrc = src.substring(0,off) + "-p" + ext;
			else
				newsrc = src.substring(0,off-2) + "-p" + ext;
			document.images[img].src = newsrc;
		}
		
		function paintButton2(img, layerid) {
			img = eval('document.' + layerid + '.document.images[img]');
			src = img.src;
			off = src.lastIndexOf(".");
			ext = src.substr(off,4);
			if (src.substring(off-2,off)!="-p")
				newsrc = src.substring(0,off) + "-p" + ext;
			else
				newsrc = src.substring(0,off-2) + "-p" + ext;
			img.src = newsrc;
		}

		function checkPaint(i, layerid){
			
			if (ns4) {
				paintButton2(i, layerid)
			}
			else {
				paintButton(i)
			}
		}
		
		function hideAllLayers() {
			if (timeoutID!=0)
				clearTimeout(timeoutID);

			if (ns4) {
				document.layers['ourbiz'].visibility = "hidden";
				document.layers['ourpeople'].visibility = "hidden";
				document.layers['aboutus'].visibility = "hidden";
				document.layers['invrel'].visibility = "hidden";
				document.layers['contactus'].visibility = "hidden";
			}
			else if (ie4) {
				ourbiz.style.visibility = "hidden";
				ourpeople.style.visibility = "hidden";
				aboutus.style.visibility = "hidden";
				invrel.style.visibility = "hidden";
				contactus.style.visibility = "hidden";
			}

		}

		function show(id) {
			if (ns4) document.layers[id].visibility = "show";
			else if (ie4) eval( id + '.style.visibility = "visible" ' );
		}

		function hide(id) {
			if (ns4) document.layers[id].visibility = "hide";
			else if (ie4) eval( id + '.style.visibility = "hidden" ' );
		}

		function hideMenu() {
			timeoutID = setTimeout("hideAllLayers()", 10);
		}