// JavaScript Document
//ȡҳԪ
function $(id){
	return document.getElementById(id);	
}
//ҳת
function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}
//ȷɾ
function delcfm(e)
{
   e = window.event || e;
    if(!confirm("Are you sure?"))
    {
		if(window.event)
		{window.event.returnValue = false;}			
		else{
		e.preventDefault();}
	}
}

//���֤
/****************************************************************************************************/
//ȥпոƱҳ
function trim(str){
	var reg = /\s/g;
	str = str.replace(reg,""); 
	return str;
}

//ȥո
function ltrim(str){
	var reg = /(^\s*)/g;
	str = str.replace(reg,""); 
	return str;
}

//ȥҿո
function rtrim(str){
	var reg = /(\s*$)/g;
	str = str.replace(reg,""); 
	return str;
}

//ȥ߿ո
function lrtrim(str){
	var reg = /(^\s*)|(\s*$)/g;
	str = str.replace(reg,""); 
	return str;
}

//Ƿĸ»߻
function letter(str)
{
	var reg=/^[^0-9_a-zA-Z]$/;
	for(i=0;i<str.length;i++){
		if(reg.test(str.charAt(i))){
			return false;
		}
	}
	return true;
}

function checkEmail(str){
	if ( str.charAt(0)=="." ||        
         str.charAt(0)=="@"||       
         str.indexOf('@', 0) == -1 || 
         str.indexOf('.', 0) == -1 || 
         str.lastIndexOf("@")==str.length-1 || 
         str.lastIndexOf(".")==str.length-1
		)
    {return false;}
	return true;
} 

//Ajax处理函数
//element,容器
//id,数据id
//url,ajax请求处理页
function ajaxDisplay(id,url,element)
{
	//创建XMLHttpRequest对象
	var xmlHttp; 
	if (window.ActiveXObject){
		xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
	}
	else{
		xmlHttp = new XMLHttpRequest();
	}
	
	if(xmlHttp){
		xmlHttp.open('POST',url,true);
		xmlHttp.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
		var SendData = 'id='+ id;
		xmlHttp.send(SendData);
		xmlHttp.onreadystatechange=function(){
		   if(xmlHttp.readyState==4){
			 if(xmlHttp.status==200){
				element.innerHTML = xmlHttp.responseText;
			 }
			 else{
				element.innerHTML='Error:'+xmlHttp.statusText;
			 }
		   }
		   else{
		   		element.innerHTML='Loadding...';	
		   }
	  	}
	 }
	 else{
	 	element.innerHTML='Error:please use IE 6.0+ or firefox 3.0+';	
	 }
}