var ie4=document.all&&navigator.userAgent.indexOf("Opera")==-1;
var ns6=document.getElementById&&!document.all;
var ns4=document.layers;
 
function showmenu(e,which, el_td){
if (!document.all&&!document.getElementById&&!document.layers) return;

clearhidemenu();
 
menuobj=ie4? document.all.popmenu : ns6? document.getElementById("popmenu") : ns4? document.popmenu : ""
menuobj.thestyle=(ie4||ns6)? menuobj.style : menuobj;
 
if (ie4||ns6) menuobj.innerHTML=which
else{
menuobj.document.write('<layer name=gui bgColor=#E6E6E6 width=170 onmouseover="clearhidemenu()" onmouseout="hidemenu()">'+which+'</layer>');
menuobj.document.close();
}
 
menuobj.contentwidth=(ie4||ns6)? menuobj.offsetWidth : menuobj.document.gui.document.width;
menuobj.contentheight=(ie4||ns6)? menuobj.offsetHeight : menuobj.document.gui.document.height;
eventX=ie4? event.clientX : ns6? e.clientX : e.x;
eventY=ie4? event.clientY : ns6? e.clientY : e.y;

eventX = el_td.offsetLeft+el_td.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode.offsetLeft;
eventY = el_td.offsetTop+305;

var rightedge=ie4? document.body.clientWidth-eventX : window.innerWidth-eventX;
var bottomedge=ie4? document.body.clientHeight-eventY : window.innerHeight-eventY;
 

if (rightedge<menuobj.contentwidth)
menuobj.thestyle.left=ie4? document.body.scrollLeft+eventX-menuobj.contentwidth : ns6? window.pageXOffset+eventX-menuobj.contentwidth : eventX-menuobj.contentwidth
else
menuobj.thestyle.left=ie4? document.body.scrollLeft+eventX : ns6? window.pageXOffset+eventX : eventX;

menuobj.thestyle.left=eventX;

if (bottomedge<menuobj.contentheight)
menuobj.thestyle.top=ie4? document.body.scrollTop+eventY-menuobj.contentheight : ns6? window.pageYOffset+eventY-menuobj.contentheight : eventY-menuobj.contentheight
else
menuobj.thestyle.top=ie4? document.body.scrollTop+event.clientY : ns6? window.pageYOffset+eventY : eventY;

menuobj.thestyle.top = eventY;

menuobj.thestyle.visibility="visible";
return false;
}
 
function contains_ns6(a, b) {
while (b.parentNode)
if ((b = b.parentNode) == a)return true;
return false;
}
 
function hidemenu(){
if (window.menuobj) menuobj.thestyle.visibility=(ie4||ns6)? "hidden" : "hide";
}
 
function dynamichide(e){
if (ie4&&!menuobj.contains(e.toElement)) hidemenu();
else if (ns6&&e.currentTarget!= e.relatedTarget&& !contains_ns6(e.currentTarget, e.relatedTarget)) hidemenu();
}
 
function delayhidemenu(){
if (ie4||ns6||ns4) delayhide=setTimeout("hidemenu()",500);
}
 
function clearhidemenu(){
if (window.delayhide) clearTimeout(delayhide);
}
 
function highlightmenu(e,state){
if (document.all) source_el=event.srcElement;
else if (document.getElementById) source_el=e.target;
if (source_el.className=="menuitems"){ source_el.id=(state=="on")? "mouseoverstyle" : ""; }
else{
while(source_el.id!="popmenu"){
source_el=document.getElementById? source_el.parentNode : source_el.parentElement;
if (source_el.className=="menuitems"){ source_el.id=(state=="on")? "mouseoverstyle" : ""; }
}}
}
 
if (ie4||ns6) document.onclick=hidemenu;