常用JS代碼

 

function $(el)
{
	if(typeof el=='string')
		return document.getElementById(el);
	else if(typeof el=='object')
		return el;
}
var jsPack = new Object();
jsPack.Cookie={//
	set:function(name,value,expires,path,domain){
		if(typeof expires=="undefined"){
			expires=new Date(new Date().getTime()+24*3600*100);
		}
		document.cookie=name+"="+jcms$UrlEncode(value)+((expires)?"; expires="+expires.toGMTString():"")+((path)?"; path="+path:"; path=/")+((domain!=null && domain.length>0)?";domain="+domain:"");
	},
	get:function(name, subname){
		var re = new RegExp((subname ? name + "=(.*?&)*?" + subname + "=(.*?)(&|;)" : name + "=([^;]*)(;|$)"), "i");
		return jcms$UrlDecode(re.test(document.cookie) ? (subname ? RegExp["$2"] : RegExp["$1"]) : ""); 
	}, 
	clear:function(name,path,domain){
		if(this.get(name)){
			document.cookie=name+"="+((path)?"; path="+path:"; path=/")+((domain)?"; domain="+domain:"")+";expires=Fri, 02-Jan-1970 00:00:00 GMT";
		}
	}
};
//追加/刪除事件
jsPack.Event={
	add:function(obj, evType, fn){
		if (obj.addEventListener){obj.addEventListener(evType, fn, false);return true;}
		else if (obj.attachEvent){var r = obj.attachEvent("on"+evType, fn);return r;}
		else {return false;}
	},
	remove:function(obj, evType, fn, useCapture){
		if (obj.removeEventListener){obj.removeEventListener(evType, fn, useCapture);return true;}
		else if (obj.detachEvent){var r = obj.detachEvent("on"+evType, fn);return r;}
		else {alert("Handler could not be removed");}
	}
};
//追加onload事件
jsPack.addOnloadEvent=function(fnc) {
	if ( typeof window.addEventListener != "undefined" )
		window.addEventListener( "load", fnc, false );
	else if ( typeof window.attachEvent != "undefined" )
	{
		window.attachEvent( "onload", fnc );
	}
	else
	{
		if ( window.onload != null )
		{
			var oldOnload = window.onload;
			window.onload = function (e) {
				oldOnload(e);
				window[fnc]();
			};
		} else
			window.onload = fnc;
	}
};
jsPack.isFunction=function(variable) {
	return typeof variable == 'function' ? true : false;
};
jsPack.isUndefined=function(variable) {
	return typeof variable == 'undefined' ? true : false;
};
jsPack.Length=function(variable) {
	var len = 0;
	var val = variable;
	for (var i = 0; i < val.length; i++) 
	{
		if (val.charCodeAt(i) >= 0x4e00 && val.charCodeAt(i) <= 0x9fa5){ 
			len += 2;
		}else {
			len++;
		}
	}
	return len;
};
jsPack.Eval=function(data) {
	jsPack.Loading.hide();
	try {
		eval(data);
	}
	catch(e) {
		alert(data);	
	}
};