var subcatHttp;
function cate()
{
	var cat_id = document.getElementById("cat").value;
	var url="select1.php?newcatid="+cat_id;
	subcatHttp = GetXmlHttpObject();
	subcatHttp.open("GET",url,true);
	subcatHttp.send(null);
	subcatHttp.onreadystatechange=catchange;
}
function catchange()
{
	if(subcatHttp.readyState == 4)
	{
	
		//alert(subcatHttp.responseText);
		document.getElementById('temp').innerHTML=subcatHttp.responseText;
	}
}




function GetXmlHttpObject()
{
var xmlHttp=null;
try
  {
  // Firefox, Opera 8.0+, Safari
  xmlHttp=new XMLHttpRequest();
  }
catch (e)
  {
  // Internet Explorer
  try
    {
    var aVersions = [ "MSXML2.XMLHttp.5.0",
        "MSXML2.XMLHttp.4.0","MSXML2.XMLHttp.3.0",
        "MSXML2.XMLHttp","Msxm12.XMLHTTP","Microsoft.XMLHttp"];

    for (var i = 0; i < aVersions.length; i++) 
	 {
        try {
            var xmlHttp = new ActiveXObject(aVersions[i]);
            return xmlHttp;
            } 
		catch (oError) 
		   {
            //Do nothing
           }
    }
    }
  catch (e)
    {
    }
  }
  if (xmlHttp==null)
  {
  alert ("Your browser does not support AJAX!");
  return;
  } 
return xmlHttp;
}