function load()
{

 var ranNum= parseInt(Math.floor(Math.random()*7));
 if(ranNum==0)
 	ranNum=1;
 
  var i=1;
  
  for(i=1;i<7;i++)  
  {
	
  	var divid='banner'+i;
	var divid1='pdtbanner'+i;

	  	if(i==ranNum)
	{	
		document.getElementById(divid).style.visibility='visible';
		document.getElementById(divid).style.display='block';
		document.getElementById(divid1).style.visibility='visible';
		document.getElementById(divid1).style.display='block';
	}
	else
		{ 
     	document.getElementById(divid).style.visibility="hidden";
		document.getElementById(divid).style.display="none";
		document.getElementById(divid1).style.visibility="hidden";
		document.getElementById(divid1).style.display="none";
	}
		
  }
}

jQuery(document).ready(function() {	load(); });