// JavaScript Document
var xml_request = false;
var host="";
function isBlank(arg){
	return arg==null||arg.length==0?true:false;
}
function isValidEmail(email){
	   var regu = "^(([0-9a-zA-Z]+)|([0-9a-zA-Z]+[_.0-9a-zA-Z-]*[0-9a-zA-Z]+))@([a-zA-Z0-9-]+[.])+([a-zA-Z]{2}|net|com|gov|mil|org|edu|int)$"
	   var re = new RegExp(regu);
	   return (email.search(re) != -1)?true:false;
   }
function resetForm(o){
	o.reset();
}
function openWindow(url,winName,param){
	window.open(url,winName,param);
}
function  strDate(str){  
	var  reg  =  /^(\d{1,4})(-  |\/)(\d{1,2})\2(\d{1,2})$/;    
	var  r  =  str.match(reg);    
	if(r==null)return  false;    
	var  d=  new  Date(r[1],  r[3]-1,r[4]);    
	if(r[1]!=d.getFullYear())return  false;  
	if(r[3]!=(d.getMonth()+1))return  false;  
	if(r[4]!=d.getDate())return  false;  
	return  true;  
}  
function IsDigit()
{
  return ((event.keyCode >= 48) && (event.keyCode <= 57));
}

var request = { 
		QueryString : function(val) { 
			var uri = window.location.search; 
			var re = new RegExp("" +val+ "=([^&?]*)", "ig"); 
			return ((uri.match(re))?(uri.match(re)[0].substr(val.length+1)):null); 
		} 
} 
function RequestCate(url,obj) {
        xml_request = false;
        if (window.XMLHttpRequest) { // Mozilla, Safari,...
            xml_request = new XMLHttpRequest();
            if (xml_request.overrideMimeType) {
                xml_request.overrideMimeType('text/xml');
            }
        } else if (window.ActiveXObject) { // IE
            try {
                xml_request = new ActiveXObject("Msxml2.XMLHTTP");
            } catch (e) {
                try {
                    xml_request = new ActiveXObject("Microsoft.XMLHTTP");
                } catch (e) {}
            }
        }
        if (!xml_request) {
            alert('Giving up :( Cannot create an XMLHTTP instance');
            return false;
        }
		url=url;
		//url+="&temp="+Math.random();		
		xml_request.onreadystatechange = function(){
			   deal(obj)
		};			
		xml_request.open('GET', url, true);
		xml_request.send();
    }

	function deal(obj){
		   if (xml_request.readyState == 4) {		   
				if (xml_request.status == 200) {              
						var text = xml_request.responseText;
						obj.innerHTML=text; 
				 } 
		   }
		  			//alert(obj.innerHTML)j;

	}
	
// so, You can using request.QueryString(para), like this 
//var u = request.QueryString("id"); 
//var l = request.QueryString("action");