var http = createRequestObject();

function createRequestObject(){
	var xmlhttp=false;
	/*@cc_on @*/
	/*@if (@_jscript_version >= 5)
		// JScript gives us Conditional compilation, we can cope with old IE versions.
		// and security blocked creation of the objects.
		try {
			xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
		  	try {
				xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
		  	} catch (E) {
		   		xmlhttp = false;
		  	}
		}
		@end @*/
	if (!xmlhttp && typeof XMLHttpRequest!='undefined') {
		try {
			xmlhttp = new XMLHttpRequest();
		} catch (e) {
			xmlhttp=false;
		}
	}
	if (!xmlhttp && window.createRequest) {
		try {
			xmlhttp = window.createRequest();
		} catch (e) {
			xmlhttp=false;
		}
	}
    return xmlhttp;
}