新手提问:js返回false了,如何页面继续运行?
日期：2014-05-18 浏览次数：20915 次
新手提问:js返回false了,怎么页面继续运行??
如下是一个写邮件页面,什么都不添点击 "发送 "后,弹出 "发件人 "不能空,点 "确定 "后,本来应该是把光标放在 "发件人 "着,可他竟然跑到form中指定的action= "sendMail.jsp "这个页面了,大虾求助:
--------------------
<%@ page contentType= "text/html; charset=gb2312 " language= "java " import= "java.sql.* " errorPage= " " %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN " "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">
<html xmlns= "http://www.w3.org/1999/xhtml ">
<head>
<meta http-equiv= "Content-Type " content= "text/html; charset=gb2312 " />
<title> 发邮件 </title>
<script language= "javascript ">
function InputCtrl(type)
{
var link=document.getElementById(type);
if(type== "acc ")
{
link.style.display= "none ";
document.getElementById( 'dcc ').style.display= " ";
document.getElementById( 'cc ').style.display= " ";
}
if(type== "dcc ")
{
link.style.display= "none ";
document.getElementById( 'acc ').style.display= " ";
document.getElementById( 'cc ').style.display= "none ";
}
if(type== "abcc ")
{
link.style.display= "none ";
document.getElementById( "dbcc ").style.display= " ";
document.getElementById( "bcc ").style.display= " ";
}
if(type== "dbcc ")
{
link.style.display= "none ";
document.getElementById( "abcc ").style.display= " ";
document.getElementById( "bcc ").style.display= "none ";
}
}
function checkForm()
{
var receiver=form1.tf_receiver.value;
var cc=form1.tf_Cc.value;
var bcc=form1.tf_Bcc.value;
var subject=form1.tf_subject.value;
//var err=document.getElementById( "err ");
if(receiver.length> 0)
{
isEmails(receiver, "tf_recevier ", "收件人电子邮件格式不合法！ ");
}
else
{
alert( "收件人不能空！ ");
//err.innerHtml = "收件人不能空 ";
form1.receiver.focus();
return false;
//keepState();
}
if(cc.length> 0)
{
isEmails(cc, "tf_cc ", "抄送人电子邮件格式不合法！ ");
}
if(bcc.length> 0)
{
isEmails(bcc, "tf_bcc ", "密送人电子邮件格式不合法！ ");
}
return true;
}
function isEmails(str,tab,err)
{
if(str.indexOf( ", ")==-1)
{
if(!isEmail(str))
{
alert(err);
form1.tab.focus();
return false;
}
}
else
{
var flag=0;
var strArray=new Array();
strArray=str.split( ", ");
for(i=0;i <strArray.length;i++)
{
if(!isEmail(strArray[i]))
{
flag++;
}
}
if(flag!=0)
{
alert(err);
form1.tab.focus();
return false;
}
}
}
</script>
</head>
如下是一个写邮件页面,什么都不添点击 "发送 "后,弹出 "发件人 "不能空,点 "确定 "后,本来应该是把光标放在 "发件人 "着,可他竟然跑到form中指定的action= "sendMail.jsp "这个页面了,大虾求助:
--------------------
<%@ page contentType= "text/html; charset=gb2312 " language= "java " import= "java.sql.* " errorPage= " " %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN " "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">
<html xmlns= "http://www.w3.org/1999/xhtml ">
<head>
<meta http-equiv= "Content-Type " content= "text/html; charset=gb2312 " />
<title> 发邮件 </title>
<script language= "javascript ">
function InputCtrl(type)
{
var link=document.getElementById(type);
if(type== "acc ")
{
link.style.display= "none ";
document.getElementById( 'dcc ').style.display= " ";
document.getElementById( 'cc ').style.display= " ";
}
if(type== "dcc ")
{
link.style.display= "none ";
document.getElementById( 'acc ').style.display= " ";
document.getElementById( 'cc ').style.display= "none ";
}
if(type== "abcc ")
{
link.style.display= "none ";
document.getElementById( "dbcc ").style.display= " ";
document.getElementById( "bcc ").style.display= " ";
}
if(type== "dbcc ")
{
link.style.display= "none ";
document.getElementById( "abcc ").style.display= " ";
document.getElementById( "bcc ").style.display= "none ";
}
}
function checkForm()
{
var receiver=form1.tf_receiver.value;
var cc=form1.tf_Cc.value;
var bcc=form1.tf_Bcc.value;
var subject=form1.tf_subject.value;
//var err=document.getElementById( "err ");
if(receiver.length> 0)
{
isEmails(receiver, "tf_recevier ", "收件人电子邮件格式不合法！ ");
}
else
{
alert( "收件人不能空！ ");
//err.innerHtml = "收件人不能空 ";
form1.receiver.focus();
return false;
//keepState();
}
if(cc.length> 0)
{
isEmails(cc, "tf_cc ", "抄送人电子邮件格式不合法！ ");
}
if(bcc.length> 0)
{
isEmails(bcc, "tf_bcc ", "密送人电子邮件格式不合法！ ");
}
return true;
}
function isEmails(str,tab,err)
{
if(str.indexOf( ", ")==-1)
{
if(!isEmail(str))
{
alert(err);
form1.tab.focus();
return false;
}
}
else
{
var flag=0;
var strArray=new Array();
strArray=str.split( ", ");
for(i=0;i <strArray.length;i++)
{
if(!isEmail(strArray[i]))
{
flag++;
}
}
if(flag!=0)
{
alert(err);
form1.tab.focus();
return false;
}
}
}
</script>
</head>
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