function search()
{  
   var s=document.getElementById("txtsearch").value;
   if(s != "")
   {   
       //var tp=$('selecttype').options[$('selecttype').selectedIndex].value;
       var tp=4;
       window.document.location.href="Search.aspx?k="+tp+"&s="+window.encodeURIComponent(s);
   }
}
function $(_sId){
	return document.getElementById(_sId);
}