function pbcode(str,id)
{
	
	var xmlHttp; 
	xmlHttp=GetXmlHttpObject(); 
	var url="getcatvalue.php?cat_no="+str; 
	var myid="pb"+id;
	//alert("hello"+url);
	xmlHttp.onreadystatechange=function(){stateChanged(xmlHttp,myid);}; 
	xmlHttp.open("GET",url,true); 
	xmlHttp.send(null); 
	return false;
}

function stateChanged(xmlHttp,id) 
{ 
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
 { 
 document.getElementById(id).value=xmlHttp.responseText 
 }
}

function GetXmlHttpObject()
{
var xmlHt=null;
try
 {
 // Firefox, Opera 8.0+, Safari
 xmlHt=new XMLHttpRequest();
 }
catch (e)
 {
 //Internet Explorer
 try
  {
  xmlHt=new ActiveXObject("Msxml2.XMLHTTP");
  }
 catch (e)
  {
  xmlHt=new ActiveXObject("Microsoft.XMLHTTP");
  }
 }
return xmlHt;
}

function Check_desc()
{
	if((document.getElementById('pb0').value=='')&&(document.getElementById('pb1').value=='')&&(document.getElementById('pb2').value=='')&&(document.getElementById('pb3').value=='')&&(document.getElementById('pb4').value=='')&&(document.getElementById('pb5').value=='')&&(document.getElementById('pb6').value=='')&&(document.getElementById('pb7').value=='')&&(document.getElementById('pb8').value=='')&&(document.getElementById('pb9').value==''))
	{
		alert("Please put correct Catalog Nos. before submit");
		return false;
	}
}