document.oncontextmenu = new Function("event.returnValue=false;");
/////////////////////////////////////////////////////

function sleep(timeout) {
	window.showModalDialog("javascript:document.writeln('<script>window.setTimeout(function () { window.close(); }, " + timeout + ");<\/script>');");
	}

function ajaxRequest(url,onSuccess){
	
	 new AjaxHelper.Request(
				 {
				url : url, 
				method : 'get',
				asynchronous : false, 
				onSuccess : function(_response ) {
						
			        onSuccess(_response);
						
			     }//onSuccess
		});
}

function ajaxRequest(url,onSuccess,asynchronous){
	
	 new AjaxHelper.Request(
				 {
				url : url, 
				method : 'get',
				asynchronous : asynchronous, 
				onSuccess : function(_response ) {
						
			        onSuccess(_response);
						
			     }//onSuccess
		});
}
/////////////////////////////


var AjaxHelper = {}

//////////////////////////////////////////////////////////////////////
//Request
AjaxHelper.Request = function(config) {
	
	
	var defaultSuccessFunction = function(){};
	var defaultFailFunction = function(){
			//alert("不能访问服务器，请联系开发维护人员！")
		};
	
	this.url = config.url ;
	this.method = config.method || 'post';
	this.asynchronous = config.asynchronous ;
	this.contentType = config.contentType || 'application/x-www-form-urlencoded';
   // this.encoding	= config.encoding || 'UTF-8';
	this.onSuccess = config.onSuccess || defaultSuccessFunction;
	this.onFail = config.onFail || defaultFailFunction;
	
	
	var transportObject = this.getTransportObject();
	
	transportObject.onreadystatechange = this.getReadyStateHandler(transportObject,this);
	
		transportObject.open(this.method, this.url, this.asynchronous);
		transportObject.setRequestHeader("Content-Type", this.contentType);
		transportObject.send();
	
};

AjaxHelper.Request.prototype = {
		getTransportObject : function() {
		var xmlreq = false;
		if (window.XMLHttpRequest) {
			xmlreq = new XMLHttpRequest();

		} else if (window.ActiveXObject) {
			try {
				xmlreq = new ActiveXObject("Msxml2.XMLHTTP");
			} catch (e1) {
				try {
					xmlreq = new ActiveXObject("Microsoft.XMLHTTP");
				} catch (e2) {
					xmlreq = false;
				}
			}
		}
		return xmlreq;
	},
	
	getReadyStateHandler:function(transportObject, ajaxRequest){
		   return function () {
			var result = false;
		  
		     if (transportObject.readyState == 4) {
		       
		       if (transportObject.status == 200) {
		    	   //alert(transportObject.responseText);
		    	   ajaxRequest.onSuccess({
		    		   responseXML: transportObject.responseXML,
					   responseTEXT:transportObject.responseText
		 	   });
		    	 
				
		       } else {
				   //alert(transportObject.status );
		    	   ajaxRequest.onFail();
		    	   
		       }//status
		       
		       ajaxRequest.transportObject = null; //clear XMLHttpRequest
		     }//readyState
		     
		    
		     
			 return result;
		   }
	}//getReadyStateHandler//
	

};