var xmlHttp

function showCustomer()
{ 

if(document.frmNetwork.cboState.value=='')
{
	alert('Select State')
	document.frmNetwork.cboState.focus()
	return false;
}

if(document.frmNetwork.cbocity.value=='0')
{
	alert('Select City')
	document.frmNetwork.cbocity.focus()
	return false;
}

if(document.frmNetwork.cbomodel.value=='')
{
	alert('Select Model')
	document.frmNetwork.cbomodel.focus()
	return false;
}


xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
  {
  alert ("Your browser does not support AJAX!");
  return;
  }   

str=document.frmNetwork.cbocity.value
strMod=document.frmNetwork.cbomodel.value
var url="getcustomer.asp";
url=url+"?q="+str;
url=url+"&m="+strMod;
url=url+"&sid="+Math.random();
xmlHttp.onreadystatechange=stateChanged;
xmlHttp.open("GET",url,true);
xmlHttp.send(null);
}

function stateChanged() 
{ 
if (xmlHttp.readyState==4)
   { 
   document.getElementById("contentLayer_price").innerHTML=xmlHttp.responseText;
   }
}

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