var xmlHTTP 		=		GetBrowser();
function GetBrowser()
{
	
	var xmlHTTP =null;
	try 
	{
		//firefox ,sarfari,opera;
		xmlHTTP   = new XMLHttpRequest();
	}
	catch(e)
	{
		//FOR IE
		try
		{
			xmlHTTP = new ActiveXObject("Msxml2.XMLHTTP");	
			
		}
		catch(E)
		{
			xmlHTTP = new ActiveXObject("Microsoft.XMLHTTP");			
		}
	}
	// return the created object or display an error message
  if (!xmlHTTP)
    alert("Error creating the XMLHttpRequest object.");
  else
    return xmlHTTP;

}