var menuids=["head_nav"];

var login_on = new Image();
var login_off = new Image();
login_on.src = "im/core/head_login_on.gif";
login_off.src = "im/core/head_login_off.gif";


function buildsubmenus_horizontal(){
for (var i=0; i<menuids.length; i++){
  var ultags=document.getElementById(menuids[i]).getElementsByTagName("ul")
    for (var t=0; t<ultags.length; t++){
		if (ultags[t].parentNode.parentNode.id==menuids[i]){
			ultags[t].style.top=ultags[t].parentNode.offsetHeight+"px";
			ultags[t].parentNode.getElementsByTagName("a")[0].className="mainfoldericon";
		}
		else{
		  ultags[t].style.left=ultags[t-1].getElementsByTagName("a")[0].offsetWidth+"px";
    	ultags[t].parentNode.getElementsByTagName("a")[0].className="subfoldericon";
		}
    ultags[t].parentNode.onmouseover=function(){
    this.getElementsByTagName("ul")[0].style.visibility="visible";
    }
    ultags[t].parentNode.onmouseout=function(){
    this.getElementsByTagName("ul")[0].style.visibility="hidden";
    }
    }
  }
}

function imgSwitch(){
  var obj = document.getElementById("loginsubmit");
  obj.onmouseover = function() {this.src = login_on.src;};
  obj.onmouseout = function() {this.src = login_off.src;};
	}

if (window.addEventListener) {
window.addEventListener("load", buildsubmenus_horizontal, false);
window.addEventListener("load", imgSwitch, false);

}
else if (window.attachEvent){
window.attachEvent("onload", buildsubmenus_horizontal);
window.attachEvent("onload", imgSwitch);
}