/*
	[Hongshee] (C)2011 Hongshee Soft.
	$file: common.js $
	$Date: 2011/05/09 $
*/

function addLoadEvent(func){
    var oldonload = window.onload;
    if (typeof(oldonload) != 'function'){
        window.onload = func;
    }   
    else {   
        window.onload = function(){
            oldonload();
            func();
        }
    }   
}   

function $(id) {
	return document.getElementById(id);
}

function trim(str) {
	return (str + '').replace(/(\s+)$/g, '').replace(/^\s+/g, '');
}