var preloaded = [];
	var preName = [];
	var preDirection = [];
	var preNameItemIndex = 1;
	preName[preNameItemIndex++] = "solutions";
	preName[preNameItemIndex++] = "industries-and-clients";
	preName[preNameItemIndex++] = "resource-center";
	preName[preNameItemIndex++] = "news-and-events";

	var preDirectionIndex = 1;
	preDirection[preName[preDirectionIndex++].replace(/-/g,"_")] = "left";
	preDirection[preName[preDirectionIndex++].replace(/-/g,"_")] = "left";
	preDirection[preName[preDirectionIndex++].replace(/-/g,"_")] = "left";
	preDirection[preName[preDirectionIndex++].replace(/-/g,"_")] = "left";

	for (var i = 1; i < preNameItemIndex; i++) {
		preloaded[preName[i]] = [loadImage(preName[i] + "-0.gif"), loadImage(preName[i] + "-1.gif")];
	}	
		
	function init() {
		if (TransMenu.isSupported()) {
			TransMenu.initialize();

			for (var i = 1; i < preNameItemIndex; i++) {
				var btnSuffix = preName[i].replace(/-/g,"_");
				eval("document.getElementById('button_"+btnSuffix+"').onmouseover = function() {swapImage('button_"+btnSuffix+"',preloaded['"+preName[i]+"'][1].src)};");
				eval("document.getElementById('button_"+btnSuffix+"').onmouseout = function() {swapImage('button_"+btnSuffix+"',preloaded['"+preName[i]+"'][0].src)};");
			}	
		}
	}

	// preloader
	function loadImage(sFilename) {
		var img = new Image();
		img.src ="/library/images/nav/" + sFilename;
		return img;
	}
			
	// swapper l'image
	function swapImage(imgName, sFilename) {
		document.images[imgName].src = sFilename;
	}