function loadIframe(myURL){
	document.getElementById("ifr_main").src = myURL;
}

function appendClass(node){
	if(node.className != "flat"){			
		node.onmouseover = function() {this.className += "over";}			
		node.onmouseout = function() {this.className = this.className.replace(new RegExp("over\\b"), "");}
	}
}

startList = function(){
		var node = document.getElementById("nav").getElementsByTagName("LI");
		for (var i=0; i<node.length; i++){appendClass(node[i]);}
}

if (window.attachEvent) 
	window.attachEvent("onload", startList);