sH = function() {
	var ss = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<ss.length; i++) {
		ss[i].onmouseover=function() {
			this.className+=" over";
		}
		ss[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" over\\b"), "");
		}
	}
	a21();
}
if (window.attachEvent&&!window.XMLHttpRequest&&!window.opera) window.attachEvent("onload", sH);
//if (window.attachEvent&&!window.opera) window.attachEvent("onload", sH);
function a21(){
	var k,s,t;
	for(var i=0;i<document.images.length;i++){
		s=document.images[i];
		t=s.src;
		if(t.indexOf("orange.png")!=-1||t.indexOf("mhelp2.png")!=-1){
			s.src=t.replace(/\.png/g,".gif");
		}
	}
}