var timerID = null;
drop1state=0
drop2state=0

n = (document.layers) ? 1:0
ie = (document.all) ? 1:0

function closeall()
{
	
		if (ie){
			menu_1.style.visibility="hidden"; 
			menu_2.style.visibility="hidden"
	
			
			 }
		else if (n){ 
			document.menu_1.visibility="hide"; 
			document.menu_2.visibility="hide"
			}	
			
		else { // firefox
			document.getElementById('menu_1').style.visibility="hidden"; 
			document.getElementById('menu_2').style.visibility="hidden";

	 }	
	}


function openclose(drop){

closeall();

	clearTimeout(timerID);
	
		if (n){ document.layers[drop].visibility="show" }
		else if (ie){ document.all[drop].style.visibility="visible" }
		else {document.getElementById(drop).style.visibility="visible" }
	
		
		}
	
		
function swapImgRestore() {
	var i,x,a=document.sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
	clearTimeout(timerID);
	timerID = setTimeout("closeall()", 4);
}
function preloadImages() {
  	var d=document; if(d.images){ if(!d.p) d.p=new Array();
    	var i,j=d.p.length,a=preloadImages.arguments; for(i=0; i<a.length; i++)
    	if (a[i].indexOf("#")!=0){ d.p[j]=new Image; d.p[j++].src=a[i];}}
}
function findObj(n, d) {
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=findObj(n,d.layers[i].document); return x;
}
function swapImage() {
  var i,j=0,x,a=swapImage.arguments; document.sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=findObj(a[i]))!=null){document.sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}