/* ----------------------------------
 js 基础类
 小男(sman) 2006-07-11
 最后修改 小男(sman) 2007-01-31
-----------------------------------*/

var BASE_PATH = "http://www.chinachugui.com/System/Js/";
var IE = document.all;

/*得到对象或对象数组(document.getElementById)*/
function $() {
	var elements = new Array();
	for (var i = 0; i < arguments.length; i++) {
		var element = arguments[i];
		if (typeof element == 'string')
			element = document.getElementById(element);
		elements.push(element);
	}
	if (arguments.length == 1) 
		return elements[0];
	return elements;
}
document.$ = $


//document.write
function $W(str){
	document.write(str);
}
//得到同名(ID)对象数组
function $N(objName){
	return document.getElementsByName(objName);
}
//对象绝对位置
function $Px(e){
	var x=e.offsetLeft;
	while(e=e.offsetParent){
		x+=e.offsetLeft;
	}
	return x;
}
function $Py(e){
	var y=e.offsetTop;
	while(e=e.offsetParent){
		y+=e.offsetTop;
	}
	return y
}

//显示隐藏对象
//返回是否显示
function $SH(objName){
	var obj = $(objName);
	if (obj){
		if (obj.style.display=="none"){
			obj.style.display = "block"
		}else{
			obj.style.display = "none"
		}
	}else{
		return false;
	}
}
//设置对象属性
function setAttribute(element,sAttrName,sValue){
	var obj = $(element);
	if (obj){
		eval("obj."+sAttrName+"=sValue");
	}
}
//包含本文件夹中的JS文件
function Import(strFileName){
	$W('<script language="javascript" src="' + BASE_PATH + strFileName + '"></script>');
}
function gc()
{
　　if (IE)
　　{
　　　　CollectGarbage();
　　　　setTimeout("CollectGarbage();", 5000);
　　}
}

//setTimeout 传函数
var _st = window.setTimeout;
window.setTimeout = function(fRef, mDelay)
{
	if(typeof fRef == 'function'){
		var argu = Array.prototype.slice.call(arguments,2);
		var f = (function(){ fRef.apply(null, argu); });
		return _st(f, mDelay);
	}
	return _st(fRef,mDelay);
}
/*------String------*/
//去首尾空格
String.prototype.trim = function(){
	if(!this) return "";
	return this.replace(/(^[\s　 \t\r\n]+)|([\s　 \t\r\n]+$)/gm, "");
}
//字符串长度(中文2)
String.prototype.Length = function(){
	if(!this)return "";
	return this.length + this.replace(/[\u0000-\u00ff]+/g,"").length
}
String.prototype.delHTML = function(){
	return this.replace(/<\/?[^>]+>/gi, '');
}
String.prototype.Right = function (N){
	if(!N)return this
	return this.substr(this.length - N, N)
}
//转义HTML
String.prototype.escapeHTML = function() {
    var div = document.createElement('div');
    var text = document.createTextNode(this);
    div.appendChild(text);
    return div.innerHTML;
}
//escapeHTML的反转
String.prototype.unescapeHTML = function() {
    var div = document.createElement('div');
    div.innerHTML = this.delHTML();
    return div.childNodes[0] ? div.childNodes[0].nodeValue : '';
}
String.prototype.toArray = function() {
	return this.split('');
}
String.prototype.getSafeRegEx = function(){
	var strout = this;
	strout = strout.replace(/\\/g,"\\\\");
	strout = strout.replace(/\|/g,"\\|");
	strout = strout.replace(/\./g,"\\.");
	strout = strout.replace(/\^/g,"\\^");
	strout = strout.replace(/\$/g,"\\$");
	strout = strout.replace(/\[/g,"\\[");
	strout = strout.replace(/\]/g,"\\]");
	strout = strout.replace(/\(/g,"\\(");
	strout = strout.replace(/\)/g,"\\)");
	strout = strout.replace(/\{/g,"\\{");
	strout = strout.replace(/\}/g,"\\}");
	strout = strout.replace(/\+/g,"\\+");
	strout = strout.replace(/\?/g,"\\?");
	strout = strout.replace(/\,/g,"\\,");
	strout = strout.replace(/\=/g,"\\=");
	strout = strout.replace(/\!/g,"\\!");
	strout = strout.replace(/\-/g,"\\-");
	return strout;
}
/*------数组------*/
function ArrIndexOf(a,v) {
	for (var i = 0; i < a.length; i++)
	  if (a[i] == v) return i;
	return -1;
}
/*---cookies操作-------*/
function getCookie(key){
	var arg = key + "=";
	var alen = arg.length;
	var clen = document.cookie.length;
	var i = 0;
	while (i < clen){
		var j = i + alen;
		if (document.cookie.substring(i,j) == arg) return getCookieVal(j); 
		i = document.cookie.indexOf(" ",i) + 1;
		if (i == 0) break;
	}
	return null;
}
function setCookie(key,value){
	var expdate = new Date();
	var argv = setCookie.arguments;
	var argc = setCookie.arguments.length;
	var expires = (argc > 2) ? argv[2] : null;
	var path = (argc > 3) ? argv[3] : null;
	var domain = (argc > 4) ? argv[4] : null;
	var secure = (argc > 5) ? argv[5] : false;
	if(expires!=null) expdate.setTime(expdate.getTime() + ( expires * 1000 ));
	document.cookie = key + "=" + escape(value) +((expires == null) ? "" : ("; expires="+ expdate.toGMTString())) +((path == null) ? "; path=/" : ("; path=" + path)) +((domain == null) ? "" : ("; domain=" + domain)) +((secure == true) ? "; secure" : ""); 
}
function getCookieVal(offset){
	var endstr = document.cookie.indexOf (";", offset);
	if (endstr == -1) endstr = document.cookie.length;
	return unescape(document.cookie.substring(offset,endstr));
}
function delCookie(name){ 
	var exp = new Date(); 
	exp.setTime (exp.getTime() - 1); 
	var cval = getCookie(name); 
	document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString(); 
}
/*-event-*/
function getKeyCode(evt){
	if (evt){
		return evt.keyCode;
	}else{
		return event.keyCode;
	}
}
/*--select--*/
function getSelectText(o){
	if (!o) return '';
	if (o.value=='') return '';
	if (o.options.selectedIndex ==-1) return '';
	var value = o.options[o.options.selectedIndex];
	if (!value) return '';
	if (value.text=='undefined') return ''
	return value.text;
}


function SetNewsImgSite(img)
{
	var width;
	var height;
	var MaxSite;
	MaxSite = 650;
	width=img.width;
	height=img.height;
	//alert(width)
	//if (height>width)
	//{
		if (width>MaxSite)
		{
			img.width=MaxSite;
			img.style.height="auto";
            return false;
		}
	//}
	//else
	//{
		//if (height>MaxSite)
		//{
		//	img.height=MaxSite;
		//	img.style.width="auto";
         //   return false;
		//}
	//}
	
}