ie4=(document.all)?true:false;
ns4=(document.layers)?true:false;

function toExit(){
var args=toExit.arguments;
var visible=args[0];
if(ns4){
        theObj=eval("document.layers[\'"+args[1]+"\']");
        if(theObj)theObj.visibility=visible;
        }
else if(ie4){
        if(visible=='show')visible='visible';
        if(visible=='hide')visible='hidden';
        theObj=eval("document.all[\'"+args[1]+"\']");
        if(theObj)theObj.style.visibility=visible;
        }
}