function openneww(htm)
   {      window.open(htm,"jg","width=404,height=425,left=30,top=30,toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no");
   }
function login_check(){
if(document.login_form.u_name.value==""){
    alert("请填写用户名！");
	document.login_form.u_name.focus();
	return false;
  }
if(document.login_form.u_pwd.value==""){
    alert("请填写登录口令！");
	document.login_form.u_pwd.focus();
	return false;
  }
}

function resultform(){
	this.opener.reg_form.xzq_id.value=document.xzqform.xzq.value;

}

function sercheck(){
	if(document.serform.key.value==""){
		alert("请先填写查询条件！");
		document.serform.key.focus();
		return false;
	}
}


function zsdy_win(htm) {
  myWin= open(htm, "_blank","top=0,left=0,width=418,height=300,toolbar=no,menubar=no,scrollbars=yes,resizable=yes")
}

function indexlogin() {
  myWin= open("login0.php", "_blank","top=0,left=0,width=379,height=327,toolbar=no,menubar=no,scrollbars=yes,resizable=yes")
}


//检测用户表单
function check(){
	if(document.reg_form.user_name.value==""){
		window.alert("请填写你的用户名称！");
		document.reg_form.user_name.focus();
		document.reg_form.user_name.select();
		return false;
	}

	if((document.reg_form.user_pwd.value=="" )|| (document.reg_form.user_pwd.value.length<4) || (document.reg_form.user_pwd.value.length>12)){
		window.alert("你的密码不符合规范！");
		document.reg_form.user_pwd.focus();
		document.reg_form.user_pwd.select();
		return false;
	}

	if(document.reg_form.user_pwd.value=="********"){
		window.alert("请重新输入您的登录密码，如果要修改密码，则输入新密码；如果仍然用老密码，请输入老密码！");
		document.reg_form.user_pwd.focus();
		document.reg_form.user_pwd.select();
		return false;
	}

	if(document.reg_form.user_email.value==""){
		window.alert("请填写联系的电子邮件地址！");
		document.reg_form.user_email.focus();
		document.reg_form.user_email.select();
		return false;
	}


	if(!JS_isEmail(document.reg_form.user_email,"请输入正确的电子邮件地址！")){return false;}

	if(document.reg_form.user_realname.value==""){
		window.alert("请填写你的真实姓名！");
		document.reg_form.user_realname.focus();
		document.reg_form.user_realname.select();
		return false;
	}
}

//招生办信息文件添加表单验证。
function check11(){
if(document.zsbform.mesTitle.value==""){
    alert("请填写信息标题！");
	document.zsbform.mesTitle.focus();
	return false;
  }
}

//网上答疑表单检测
function check1(){
if(document.reg_form.title.value==""){
    alert("请填写信息的标题！");
	document.reg_form.title.focus();
	return false;
  }
if(document.reg_form.content.value==""){
    alert("请填写信息内容！");
	document.reg_form.content.focus();
	return false;
  }
}

//网上答疑表单检测-----new
function reg_formcheck(){
	if(document.reg_form.user_realname.value==""){
		alert("请填写提问对象！");
		document.reg_form.user_realname.focus();
		return false;
	}
	if(document.reg_form.title.value==""){
		alert("请填写信息的标题！");
		document.reg_form.title.focus();
		return false;
	}
	if(document.reg_form.content.value==""){
		alert("请填写信息内容！");
		document.reg_form.content.focus();
		return false;
	 }
}

//删除确认对话框
function check_del(url){
	answer=confirm("你真的要删除该信息以及其相关信息吗？");
	if(answer==1){
		document.location.href=url;
	}
}

//关闭确认对话框
function check_close(url){
	answer=confirm("你真的要关闭或显示吗？");
	if(answer==1){
		document.location.href=url;
	}
}


function xuexiao_check(){
if(document.xuexiao.key.value==""){
    alert("请填写查询关键字！");
	document.xuexiao.key.focus();
	return false;
  }

}

function xxlogin_check(){
	if(document.xxlogin.u_name.value==""){
		alert("请填写登录名！");
		document.xxlogin.u_name.focus();
		return false;
	}
	if(document.xxlogin.u_pwd.value==""){
		alert("请填写登录密码！");
		document.xxlogin.u_pwd.focus();
		return false;
	}
	if(document.xxlogin.u_sjm.value==""){
		alert("请填写随机验证码！");
		document.xxlogin.u_sjm.focus();
		return false;
	}
}


function JS_trimLeft(s) {
	var whitespaces = " \t\n\r";
	for(n = 0; n < s.length; n++) { 
		if (whitespaces.indexOf(s.charAt(n)) == -1) 
			return (n > 0) ? s.substring(n, s.length) : s; 
	}
	return("");
}
function JS_trimRight(s){
	var whitespaces = " \t\n\r";
	for(n = s.length - 1; n  > -1; n--) { 
		if (whitespaces.indexOf(s.charAt(n)) == -1) 
			return (n < (s.length - 1)) ? s.substring(0, n+1) : s; 
	}
	return("");
}

function JS_trim(s) {
	return ((s == null) ? "" : JS_trimRight(JS_trimLeft(s))); 
}

function JS_isNumber(field, strBodyHeader) {
	var strVal = JS_trim(field.value);
	if (strVal.length == 0 || strVal.length > 999) return false;
	var 	x = 0;
	for (i=0;i < strVal.length; i++) { 
		if (strVal.charAt(i) >= '0' && strVal.charAt(i) <= '9') x++;
	}
	if (strVal.length > x) {
		alert("\""+ strBodyHeader + "\"");
		field.focus();
		return false;
	} else {
		return true;
	}
}

function JS_isEmail(field, strBodyHeader) {
	var strMsg = ""; 
	var chAt  = '@'; 
	var chDot = '.'; 
	var strEmailAddr = JS_trim(field.value);
	   if (strEmailAddr.length == 0) return true;
	   if (strEmailAddr.indexOf(" ") == -1)
	   {
	       var iFirstAtPos = strEmailAddr.indexOf(chAt);
	       var iLastAtPos = strEmailAddr.lastIndexOf(chAt);
	       if (iFirstAtPos > 0 && iFirstAtPos < (strEmailAddr.length - 1) &&iFirstAtPos == iLastAtPos) {
		   // look for '.' there must be at least one char between '@' and '.'
		   var iDotPos = strEmailAddr.indexOf(chDot, iFirstAtPos + 1);
		   if (iDotPos > (iFirstAtPos + 1) && iDotPos < (strEmailAddr.length -1)) return true;
	       }
	   }
	   alert("\"" + strBodyHeader + "\"");
	   field.focus();
	   field.select();
	   return false;
}