function checkint(ele){  
	if(ele.value=="") return;
	var myregexp = "^[0-9]{1,9}$";
    var res = ele.value.search(myregexp);
    if(res==-1){		
		alert("请输入数字!");
		ele.focus();
		return false;
	}
}

function isint(ele){  
	if(ele.value=="") return false;
	var myregexp = "^[0-9]{1,9}$";
    var res = ele.value.search(myregexp);
    if(res==-1){		
		alert("请输入数字!");
		ele.focus();
		return false;
	}
	return true;
}
function filter(e){
   var re = /'/g;
   e.value = e.value.replace(re, "");
}

function filterform(form){
   var re = /'/g;
   for (var i=0; i<form.elements.length; i++) {
      var e = form.elements[i];
      e.value = e.value.replace(re, "");    
   }	
}

function filterbr(e)
{
	var re = /"/g;
	var re2 = /\r\n/g;
	e.value = e.value.replace(re, ""); 
	e.value = e.value.replace(re2, "");   
}

 

function checkemail(data)
{
	if(data=="") return false;
	var datastr = data;
	var lefttrim = datastr.search(/\s/gi);
	  
	if (lefttrim == -1) {
		return -1;
	}
	var myregexp = /[a-z0-9](([a-z0-9]|[_\-\.][a-z0-9])*)@([a-z0-9]([a-z0-9]|[_\-][a-z0-9])*)((\.[a-z0-9]([a-z0-9]|[_\-][a-z0-9])*)*)/gi;
	  
	var answerind = datastr.search(myregexp);
	var answerarr = datastr.match(myregexp);
	  
	if (answerind == 0 && answerarr[0].length == datastr.length) {
		return true;
	}
	return false;
}
function isemail(ele)
{
	if(ele.value=="")return;
	var myregexp =/[a-z0-9](([a-z0-9]|[_\-\.][a-z0-9])*)@([a-z0-9]([a-z0-9]|[_\-][a-z0-9])*)((\.[a-z0-9]([a-z0-9]|[_\-][a-z0-9])*)*)/gi;
    var res = ele.value.search(myregexp);
    if(res==-1){		
		alert("请正确认输入email或msn!");
		ele.select();
	}	 
}

function ismobile(ele){  
	if(ele.value=="") return false;
	var myregexp = "^[0-9]{11}$";
    var res = ele.value.search(myregexp);
    if(res==-1){		
		alert("请输入正确手机号!");
		ele.select();
		return false;
	}
	return true;
}
function ispostcode(ele){  
	if(ele.value=="") return false;
	var myregexp = "^[0-9]{6}$";
    var res = ele.value.search(myregexp);
    if(res==-1){		
		alert("请输入正确邮政编码!");
		ele.select();
		return false;
	}
	return true;
}
function istel(ele){  
	if(ele.value=="")return;
	var myregexp =/^(\d{3,4})\-(\d{7,8})$/;
    var res = ele.value.search(myregexp);
    if(res==-1){		
		alert("请正确认输入电话号码!");
		ele.select();
	}	
}

function istm(ele)//电话或手机
{
	if(ele.value=="")return;
	var bln=false;
	var myregexp =/^(\d{3,4})\-(\d{7,8})$/;
    var res = ele.value.search(myregexp);
    if(res==-1)bln=false;
	else bln=true;	
	
	if(bln==false)
	{
		myregexp = "^[0-9]{11}$";
		res = ele.value.search(myregexp);
		if(res==-1)bln=false;
		else bln=true;
	}
    if(bln==false)
	{
		alert("请输入正确电话号码或手机号!");
		ele.select();
		return false;
	}
}

//检查文件夹或文件名称是否为合法
function isf(str)
{
	var myregexp = "^[a-za-z0-9.]{1,20}$" ;  
	var res = str.search(myregexp);
	if(res==-1) return false;
	else return true;
}


//检查文件夹或文件名称是否为合法,无后缀.
function isfn(ele)
{
	if(ele.value=="") return false;
	var myregexp = "^[a-za-z0-9]{1,20}$" ;  
	var res = ele.value.search(myregexp);
	if(res==-1) {alert("请输入正规的文件名");ele.focus();return false;}
	else return true;
}

//检查用户名是否为合法的6-20位的数字和字母的组合
function isun(str)
{
	var myregexp = "^[a-za-z0-9]{6,20}$" ;  
	var res = str.search(myregexp);
	if(res==-1) return false;
	else return true;
}
//检查首字符是否为字母
function checkfn(str)
{
	if(str=="") return false;
    var strf = str.substring(0,1);
	var myregexp ="^[a-za-z]{1}$";
    var res = strf.search(myregexp);
    if(res==-1) return false;
    else return true;
}
//检查密码是否为合法的6-20位的数字和字母的组合
function ispass(str)
{
	var myregexp = "^[a-za-z0-9]{6,20}$" ; 
	var res = str.search(myregexp);
	if(res==-1) return false;
	else return true;
}

function checkall(form)
{
	for (var i=0;i<form.elements.length;i++)
	{
		var e = form.elements[i];
		if (e.name != 'chkall' & e.name!='chkinvert'  & e.name!='chkcancel'){    
			e.checked = form.chkall.checked; 
		}		   
	}//end of for	    
}
	 
function checkinvert(form)
{
	if(form.chkinvert.checked==true)
	{
		for (var i=0;i<form.elements.length;i++)
		{
			var e = form.elements[i];
			if (e.name != 'chkall' & e.name!='chkinvert' & e.name!='chkcancel'){
				if(e.checked ==true ) 
					e.checked=false;
				else
					e.checked=true;
			}
		}//end of for
	}
}
	 
function checkcancel(form){
	for (var i=0;i<form.elements.length;i++)
	{
		var e = form.elements[i];
		if (e.name != 'chkall' & e.name!='chkinvert' & e.name!='chkcancel'){
			e.checked = false;
		}
	}//end of for
}


function createoption(id, name)
{
	var ooption = document.createelement("option");
	ooption.appendchild(document.createtextnode(name));
	ooption.setattribute("value", id);
	return ooption;
}

function showimg(this0)
{
  if(this0.src.indexof(".gif")!=-1||this0.src.indexof(".jpg")!=-1||this0.src.indexof(".png")!=-1) window.open(this0.src,"");
}

function openwin(hrefstr, left, top, width, height)
{
	window.open(hrefstr,'_blank','resizable=yes,status=no,scrollbars=yes,left=' + left + ',top=' + top +',width='+ width +',height='+ height +'');
}

function loadscript( url )
{
	document.write( '<scr' + 'ipt type="text/javascript" src="' + url + '"><\/scr' + 'ipt>' ) ;
}

function addfavorite(url,webname){
   if (document.all) {
      window.external.addfavorite(url,webname);
   } else if (window.sidebar) {
      window.sidebar.addpanel(webname, url, "#");
   }
}