startList = function() {
    /* check browsers*/
    var uagent    = navigator.userAgent.toLowerCase();
    var is_safari = ( (uagent.indexOf('safari') != -1) || (navigator.vendor == "Apple Computer, Inc.") );
    var is_kon    = (uagent.indexOf('konqueror') != -1);

    var aPreLoad = new Array();
    var sTempSrc;
    var aImages = document.getElementsByTagName("img");
 
    for (var i = 0; i < aImages.length; i++) {  
	if (aImages[i].className == 'imgover') {
	    var src = aImages[i].getAttribute('src');
	    var hsrc = src.replace(/__/, '_');
	    aImages[i].setAttribute('hsrc', hsrc);
	    aPreLoad[i] = new Image();
	    aPreLoad[i].src = hsrc;
	}
    }
 
    var navRoot = document.getElementById("nav");

    for (var i=0; i < navRoot.childNodes.length; i++) {
	var node = navRoot.childNodes[i];
	if (node.nodeName == "LI") {
	
	    node.onmouseover = function() {
		if (navigator.appName == "Microsoft Internet Explorer")
		    this.className += " over";
		if (is_safari || is_kon)
		    return true;
		var img = this.getElementsByTagName('img').item(0);
		if (img) {
		    sTempSrc = img.getAttribute('src');
		    img.setAttribute('src', img.getAttribute('hsrc'));
		    //img.setAttribute('src', img.getAttribute('src').replace(/__/, "_"));
		}
		return true;
	    }

	    node.onmouseout = function() {				
		if (navigator.appName == "Microsoft Internet Explorer")
		    this.className = this.className.replace(" over", "");
		if (is_safari || is_kon)
		    return true;
		var img = this.getElementsByTagName('img').item(0);
		if (img) {
		    if (!sTempSrc) 
			sTempSrc = img.getAttribute('src').replace(/_/, "__");
		    img.setAttribute('src', sTempSrc);
		}
		return true;
	    }
	    
	} // end if li
    } // end for
//end 
} //end startList