var xmlHttp
///////

///////
function getCategory()
{ 

//alert(document.cart_quantity.needle_DD.value);
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
{
alert ("Browser does not support HTTP Request")
return
} 

var url="getCat.php";
 mID = document.manufacturers.manufacturers_id.value
url=url+"?mID="+mID+""
xmlHttp.onreadystatechange=statgetCategory
xmlHttp.open("GET",url,true)
xmlHttp.send(null)
}
function statgetCategory()
{ 

if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
{ 

document.getElementById("cat").innerHTML=xmlHttp.responseText 

} 
}
/////


///////
function GetXmlHttpObject()
{ 
var objXMLHttp=null
if (window.XMLHttpRequest)
{
objXMLHttp=new XMLHttpRequest()
}
else if (window.ActiveXObject)
{
objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP")
}
return objXMLHttp
}