/**
*			常用的工具Js代码
*
*
*
*
*/
//根据对象Id得到对象，parameter1:objectId
function $(name){
		if(document.getElementById(name))return document.getElementById(name);
		else {return null;}
	}
//设置具有innerHTML属性的对象,parameter1:对象id,parameter2:设置的值
function setInnerHTML(div_id, value)
{
	var dstDiv = $(div_id);
	dstDiv.innerHTML = value;
}
//得到具有innerHTML属性的对象的网页字符串
function getInnerHTML(div_id){
	var inString = document.getElementById(div_id).innerHTML;
	return inString;
}
//根据用户指定的url,窗口名称，高度，宽度弹出新的窗口
function openPopup(url, name, height, width)
{
	newwindow=window.open(url, name,'height='+height+',width='+width);
	if (window.focus) {newwindow.focus()}
	return false;
}

//setCooie parameter1:名称 parameter2:值 expires:默认为一天
function setCookie(cookieName,cookieValue){
	var expires = new Date();
	expires.setTime(expires.getTime() + 24 * 60 * 60 * 1000);	
	/*1000mm*60second*60minute*24hours*30days*3months*/
	
	document.cookie = cookieName+"=" + escape(cookieValue)
     + ';expires=' + expires.toGMTString();
	
}
//得到Cookie值
function getCookie(cookieName) {
  var cookieString = document.cookie;
  var start = cookieString.indexOf(cookieName + '=');
  // 加上等号的原因是避免在某些 Cookie 的值里有
  // 与 cookieName 一样的字符串。
  if (start == -1) // 找不到
    return null;
  start += cookieName.length + 1;
  var end = cookieString.indexOf(';', start);
  if (end == -1) return unescape(cookieString.substring(start));
  return unescape(cookieString.substring(start, end));
}
//remove Cookie,parameter1:cookieName
function removeCookie (name) {  
	var exp = new Date();  
	exp.setTime (exp.getTime() - 1);  
	// This cookie is history  
	var cval = getCookie (name);  
	document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
}
//get CurrentTime
function getTime()
{
	var now = new Date();
	return now.toLocaleString();
}
//show currentTime
function now(){
	if(!$('currentTime'))document.write("<span id='currentTime'></span>");
	setInnerHTML('currentTime',new Date().toLocaleString());
	setTimeout(note,1000);
}
//对字符串进行编码
function escapeHTML(str){
	var html = escape(str);
	return html;
}
function unescapeHTML(html){
	var str =  unescape(html);
	return str;
}