<SCRIPT language=javascript>
function CheckPost()
{
if (myform.user.value==""}
{
alert("please input user name!");
myform.user.focus();
return false;
}
if (myform.title.value.length<5)
{
alert("Title length can't less 5 chars");
myform.title.focus();
return false;
}
}
</SCRIPT> <form action="add.php" method="POST" name="myform" onsubmit="return CheckPost();">
User :<input type="text" size=10 name="user"/><br>
Title :<input type="text" size=20 name="title"/><br>
Content :<TextArea name="content" rows=10 ></TextArea><br>
<input type="submit" name="submit" value="Send Message"/>
</form>
只是段html 脚本, 里面用javascript 判断输入框,可是不起作用,哪位给分析一下?
{
if (myform.user.value==""} // )
{
alert("please input user name!");
myform.user.focus();
return false;
}
if (myform.title.value.length<5)
{
alert("Title length can't less 5 chars");
myform.title.focus();
return false;
}
}