window.onload = function() {
if(document.getElementById("navigation")){
	var myMenu = document.getElementById("navigation").getElementsByTagName("a");
	var Over  = "_on";
	var Off = "_off";
	var HrefList = new Array();
	var myHref = document.location.href;
	var myUrl = FilePass(myHref);
	for (var i = 0; i <myMenu.length; i++) {
		var HrefValue = myMenu[i].getAttributeNode("href").value;
		var myHref = FilePass(HrefValue);
		
		if(myHref == myUrl || myUrl+"#main" == myHref){
			myMenu[i].firstChild.src = myMenu[i].firstChild.src.replace(Off,Over);
			myMenu[i].onmouseover =function() {
				return false;
			}
		}else{
			myMenu[i].onmouseover =function() {
				this.firstChild.src = this.firstChild.src.replace(Off,Over);
			}
			myMenu[i].onmouseout =function() {
				this.firstChild.src = this.firstChild.src.replace(Over,Off);
			}
		}
	}
}
}
function FilePass(str){
		var FilePass = str.substring(str.lastIndexOf("/")+1,str.length);
		return FilePass;
}