var xmlHttp = false;
    /*@cc_on @*/
    /*@if (@_jscript_version >= 5)
    try {
        xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
        } catch (e) {
		    try {
    			xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
	    		} catch (e2) {
				     xmlHttp = false;
    				     }
		    }
    @end @*/
												
    if (!xmlHttp && typeof XMLHttpRequest != 'undefined') {
	  xmlHttp = new XMLHttpRequest();
    }