var xmlHttp;
function ajaxFunction()
{
	try
	  {
		  // Firefox, Opera 8.0+, Safari
		  xmlHttp=new XMLHttpRequest();
	  }
	catch (e)
	  {
		  // Internet Explorer
		  try
			{
				xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
			}
		  catch (e)
			{
				try
				  {
					  xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
				  }
				catch (e)
				  {
					  alert("Your browser does not support AJAX!");
					  return false;
				  }
			}
		}
  
	xmlHttp.onreadystatechange=function()
	{
	
	  if(xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
	  {
		// Get the data from the server's response
		ajaxResponse(xmlHttp.responseText);
	  }
	}
}