// JavaScript Document
function switchVisible(id,viz) 
{
	var ie4up = (document.all)? true : false;
 	var ns4   = (document.layers)? true : false;
	var ns6up = (document.getElementById)? true : false;
   if (ns4 && getLayer(id))
   	{
       	getLayer(id).visibility = (viz) ? 'show' : 'hide';
    }
    if ((ie4up || ns6up) && getLayer(id))
   	{
       		 if(viz==0)
       		 {
       		 	document.getElementById(id).style.visibility="hidden";
 //      		 	getLayer(id).style.visibility = "hidden";
       		 }
       	else if(viz==1)
       		{
       		document.getElementById(id).style.visibility="visible";
//       	getLayer(id).style.visibility = "visible";
       		}
     }
//	  	alert("id= " + id + "   viz= " + viz + "  Browsers = " + ie4up + " " + ns4 + " "  + ns6up + "  getLayer(id)= " + getLayer(id));
}
//
function getLayer(id) 
{	
//	var x = eval('document.getElementById("'+id+'")')
//	alert("getlayer= " + id + "  " + x);
	var ie4up = (document.all)? true : false;
 	var ns4   = (document.layers)? true : false;
	var ns6up = (document.getElementById)? true : false;
    if (ns4) return eval('document.layers["'+id+'"]');
    if (ie4up) return eval('document.all["'+id+'"]');
    if (ns6up) return eval('document.getElementById("'+id+'")');
    return null;
}
//
function help(id,msg)
{
	if(msg==1)switchVisible('help_message1',id);
	else if(msg==2)switchVisible('help_message2',id);
	else if(msg==3)switchVisible('help_message3',id);
	else if(msg==3)switchVisible('help_message4',id);
}