function G(id){if(typeof(id)=="string"){return document.getElementById(id);}return id;}

String.prototype.trim = function () {
    return this.replace(/(^\s*)|(\s*$)/g, "");
};


function notic(url){
	(new Image()).src=url;
}

// Dynamic Load Javascript
function loadScript(id,url){
    oScript = document.getElementById(id); 
    var head = document.getElementsByTagName("head").item(0); 
    if (oScript) {
        head.removeChild(oScript); 
    }  
    oScript = document.createElement("script"); 
    oScript.setAttribute("src", url); 
    oScript.setAttribute("id",id); 
    oScript.setAttribute("type","text/javascript"); 
    oScript.setAttribute("language","javascript"); 
    head.appendChild(oScript); 
    return oScript; 
}
// Base AjaxRequest
function AjaxRequest(){
    var oThis = this; 
    var text = null;
    var xml = null;
    var object = null;
    var xmlhttp = null;
    var parameters = [];
    try {
        xmlhttp = new XMLHttpRequest();
    }catch (e1) {
        try {
            xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
        } catch (e2) {
            try{
                xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
            }catch(e3){
            }
        }
    }
    if(xmlhttp==null){
        alert("Can't create XMLHttpRequest object");
        return null;
    }

    this.onreadystatechange = function(){
        if(xmlhttp.readyState==4){
            if(xmlhttp.status==200 ||xmlhttp.status==0){
                oThis.onBack();
            }else{
                if (xmlhttp.status==404){
                    // alert("URL: (" + oThis.url + ") doesn't exist!");
                }else{
                    // alert("Status is " + xmlhttp.status);
                }
            }
        }
    };
    
    this.open = function(_method,_url,_async){
        xml = null;
        text = null;
        object = null;
        oThis.clearParameters();
        oThis.async = _async;
        oThis.url = _url;
        xmlhttp.open(_method,_url,_async);
        xmlhttp.setRequestHeader("CONTENT-TYPE","application/x-www-form-urlencoded");
        oThis.setParameter("_isAjaxRequest",'true');    
        if(_async==true) {xmlhttp.onreadystatechange=oThis.onreadystatechange;}
    };

    this.setParameter = function(name,value) {
        parameters.push({'name':name,'value':value});
    };

    this.clearParameters = function(){
        parameters = new Array();
    };

    this.getParametersStr = function(){
        var info = [];
        var pvalue = null;
        for(var i=0;i<parameters.length;i++){
            var p = parameters[i];
            if(p==null) continue;
            pvalue = encodeURIComponent(p.value);
            info.push(p.name + "=" + pvalue);
        }
        var str = info.join("&");
        return str;
    };
    
    this.send = function(){
        var str =oThis.getParametersStr();
        xmlhttp.send(str);
        // if async is false, run function by synchronous
        if(oThis.async==false) {oThis.onreadystatechange();}
        oThis.clearParameters();
    };
    
    // return value of object
    this.getObject = function(){
        if(object==null){
            try{
                object = eval("obj=" + oThis.getText());
            }catch(e){
                object = null;
            }
        }
        return object;
    };
    
    // return value of text
    this.getText = function(){
        if(text==null) {text = xmlhttp.responseText;}
        return text;
    };

    // return value of xmlDoc
    this.getXml = function(){
        if(xml==null) {xml = xmlhttp.responseXML;}
        return xml;
    };
      
    this.onBack = function(){};
}
function addLoadEvent(func){
	var oldonload = window.onload;
	if(typeof window.onload != 'function'){
		window.onload = func;
	}else{
		window.onload = function(){
			oldonload();
			func();
		};
	}
}
function moveMessage(elementID,final_x,final_y,interval){
	var elem=G(elementID);
	if(elem.movement){
		clearTimeout(elem.movement);
	}
	var xpos=parseInt(elem.style.left);
	var ypos=parseInt(elem.style.top);
	if(xpos==final_x && ypos==final_y){
		return true;
	}
	if(xpos<final_x){
		xpos++;
	}
	if(xpos>final_x){
		xpos--;
	}
	if(ypos<final_y){
		ypos++;
	}
	if(ypos>final_y){
		ypos--;
	}
	elem.style.left=xpos+"px";
	elem.style.top=ypos+"px";
	var recp="moveMessage('"+elementID+"',"+final_x+","+final_y+","+interval+")";
	elem.movement=setTimeout(recp,interval);
}
function insertAfter(newElement,targetElement){
	var parent = targetElement.parentNode;
	if(parent.lastChild == targetElement){
		parent.appendChild(newElement);
		}else{
		parent.insertBefore(newElement,targetElement.nextSibling);
		}
}
function addClass(element,value){
	if(!element.className){
		element.className = value;
		}else{
		newClassName = element.className;
		newClassName += " ";
		newClassName += value;
		element.className = newClassName;
		}
}

//input number only
function keypress(e){
	if(window.event){
		if(e.keyCode<48 || e.keyCode>57 || e.keyCode==8){
			return false;
		}else{
			return true;
		}
	}else if(e.which){
		if((e.which>47) && (e.which<58) || (e.which==8)){
			return true;
		}else{
			return false;
		}
	}
}

function StringBuffer(){
    var oThis = this; 
    this._strings = [];
    
    this.append = function(str){
        oThis._strings.push(str);
    };
    this.toString = function(){
        return oThis._strings.join("");
    };
    this.length = function(){
        return oThis._strings.join("").length;
    };
}

function validNameNumber(name, number) {
	if (isNaN(number)) {
		return false;
	}
	var pag2 = /^[_a-zA-Z0-9\\-]+([\\.][_a-zA-Z0-9\\-]*)*@[a-zA-Z0-9\\-]+([\\.][a-zA-Z0-9\\-]+)+$/;
	if (!pag2.test(name)) {
		return false;
	}
	return true;
}

function logout(cname,href) {
	if(href.charAt(0)!='/'){
		href='/'+href;
	}
	$.cookie(cname, null, {path:'/'}); //删除一个cookie
	$.cookie('R_URL', null, {path:'/'}); //删除一个cookie
	window.location.href =href;
	return false;
}
function backlogout(cname,href) {
	if(href.charAt(0)!='/'){
		href='/'+href;
	}
	$.cookie(cname, null, {path:'/'}); //删除一个cookie
	window.location.href =href;
	return false;
}