var menuids=["mainmenu"]
function buildsubmenus(){
for (var i=0; i<menuids.length; i++){
  var ultags=document.getElementById(menuids[i]).getElementsByTagName("ul")
    for (var t=0; t<ultags.length; t++){
    ultags[t].parentNode.getElementsByTagName("a")[0].className="subfolderstyle"
		if (ultags[t].parentNode.parentNode.id==menuids[i])
			ultags[t].style.left=ultags[t].parentNode.offsetWidth+"px" 
		else 
		  ultags[t].style.left=ultags[t-1].getElementsByTagName("a")[0].offsetWidth+"px"
    ultags[t].parentNode.onmouseover=function(){
    this.getElementsByTagName("ul")[0].style.display="block"
    }
    ultags[t].parentNode.onmouseout=function(){
    this.getElementsByTagName("ul")[0].style.display="block"
    }
    }
		for (var t=ultags.length-1; t>-1; t--){ 
		ultags[t].style.visibility="visible"
		ultags[t].style.display="none"
		}
  }
}
if (window.addEventListener)
window.addEventListener("load", buildsubmenus, false)
else if (window.attachEvent)
window.attachEvent("onload", buildsubmenus)

var xoxo = new Array()
xoxo[0] = "top_images/graphic1.jpg";
xoxo[1] = "top_images/graphic2.jpg"; 
xoxo[2] = "top_images/graphic3.jpg"; 
xoxo[3] = "top_images/graphic4.jpg"; 
xoxo[4] = "top_images/graphic5.jpg"; 
xoxo[5] = "top_images/graphic6.jpg"; 
xoxo[6] = "top_images/graphic7.jpg"; 
xoxo[7] = "top_images/graphic8.jpg"; 
xoxo[8] = "top_images/graphic9.jpg"; 
xoxo[9] = "top_images/graphic10.jpg"; 
xoxo[10] = "top_images/graphic11.jpg"; 
xoxo[11] = "top_images/graphic12.jpg"; 
xoxo[12] = "top_images/graphic13.jpg"; 
xoxo[13] = "top_images/graphic14.jpg"; 
xoxo[14] = "top_images/graphic15.jpg"; 
xoxo[15] = "top_images/graphic16.jpg"; 
xoxo[16] = "top_images/graphic17.jpg"; 
xoxo[17] = "top_images/graphic18.jpg"; 
xoxo[18] = "top_images/graphic19.jpg"; 
xoxo[19] = "top_images/graphic20.jpg"; 

var j = 0
var p = xoxo.length;
var preBuffer = new Array()
for (i = 0; i < p; i++){
   preBuffer[i] = new Image()
   preBuffer[i].src = xoxo[i]
}
var whichImage = Math.round(Math.random()*(p-1));
function showImage(){
document.write('<img src="'+xoxo[whichImage]+'">');
}