// JScript 文件
//检测用户名是否重复
        function PostInfotoServer(url,xml){
            if((xml == null)||(xml==null))
               return;
            var XMLSender;
	        try {
		        XMLSender = new ActiveXObject("Msxml2.XMLHTTP");
	        } catch (e) {
		        try {
			        XMLSender = new ActiveXObject("Microsoft.XMLHTTP");
		        } catch (E) {
			        XMLSender = false;
		        }
	        }
	        if (!XMLSender && typeof XMLHttpRequest!='undefined') {
	          XMLSender = new XMLHttpRequest();
	        }
            XMLSender.Open("POST",url,false);
            XMLSender.setRequestHeader("CONTENT-TYPE","application/x-www-form-urlencoded");
	        XMLSender.send((xml));
            return XMLSender.responseText;
        }        
	    function CallService(username){
	        if(username.length>3)
	        {
	            var ret = PostInfotoServer("CheckUserNameExist.ashx?UserName=" + escape(username), '1') + "";
	            if(ret=="true")
	            {
	                document.getElementById('tsLab').innerHTML = '<font color=red>用户名已存在</font>';
	            }
	            else if (ret=="false")
	            {
	                document.getElementById('tsLab').innerHTML = '<font color=green>没有重复</font>';
	            }
	        }
	        else
	        {
	         document.getElementById('tsLab').innerHTML = '';
	        }
	    }