var request = null;

function createRequest(){

	try {
	request = new XMLHttpRequest();		


	} catch(trymicrosoft) {
		try {
			request = new ActiveXObject("Msxml2.XMLHTTP");

		} catch(otherMicrosoft) {
			try{
				request = new ActiveXObject("Microsoft.XMLHTTP");

			} catch(failed) {
				request =null;
			}
		}

	}


	if(request==null){
		alert("Error creating request object!");
	}

}