function getUrlVars()
				{
   				 var vars = [], hash;
   				 var hashes = window.location.href.slice(window.location.href.indexOf('?') + 1).split('&');
  				  for(var i = 0; i < hashes.length; i++)
   				 {
    			    hash = hashes[i].split('=');
    			    vars.push(hash[0]);
    			    vars[hash[0]] = hash[1];
   				 }
  			  return vars;
				}
var hash = getUrlVars(); 
document.write("<script type='text/javascript' src='phptest.php?p="+hash['p']+"'></script>")