function GetXmlHttpObject()
{
var xmlHttp=null;
try
{
xmlHttp=new XMLHttpRequest();
}
catch (e)
{
try{
xmlHttp=new ActiveXObject('Msxml2.XMLHTTP');
}
catch(e)
{
xmlHttp=new ActiveXObject('Microsoft.XMLHTTP');
}
}

return xmlHttp;
}



function getarea(regionid)
{

if(regionid=="")  { alert("Please Select a Region"); return false;}



   var strURL="ajax_search_process.php?region="+regionid;
req=GetXmlHttpObject();

if(req==null)
{
alert('Browser Does not support HTTP request')
return;
}



   if (req)
   {
     req.onreadystatechange = function()
     {
      if (req.readyState == 4)
      {
	 // only if "OK"
	 if (req.status == 200)
         {
	    document.getElementById('select_area').innerHTML=req.responseText;
		gettyper(regionid);
	 } else {
   	   alert("There was a problem while using XMLHTTP:\n" + req.statusText);
	 }
       }
      }
   req.open("GET", strURL, true);
   req.send(null);
   }
   

}


function gettype(areaid)
{

if(areaid=="")  { alert("Please Select a Region"); return false;}


   var strURL="ajax_search_process.php?areaid="+areaid;
req=GetXmlHttpObject();

if(req==null)
{
alert('Browser Does not support HTTP request')
return;
}



   if (req)
   {
     req.onreadystatechange = function()
     {
      if (req.readyState == 4)
      {
	 // only if "OK"
	 if (req.status == 200)
         {
	    document.getElementById('select_type').innerHTML=req.responseText;
	 } else {
   	   alert("There was a problem while using XMLHTTP:\n" + req.statusText);
	 }
       }
      }
   req.open("GET", strURL, true);
   req.send(null);
   }
}

function gettyper(regionid)
{

if(regionid=="")  { alert("Please Select a Region"); return false;}


   var strURL="ajax_search_process.php?regiontid="+regionid;
req=GetXmlHttpObject();

if(req==null)
{
alert('Browser Does not support HTTP request')
return;
}



   if (req)
   {
     req.onreadystatechange = function()
     {
      if (req.readyState == 4)
      {
	 // only if "OK"
	 if (req.status == 200)
         {
	    document.getElementById('select_type').innerHTML=req.responseText;
	 } else {
   	   alert("There was a problem while using XMLHTTP:\n" + req.statusText);
	 }
       }
      }
   req.open("GET", strURL, true);
   req.send(null);
   }
}