JavaScript textarea dynamic display of remaining characters _ form effects

Source: Internet
Author: User
<div class= "Form" >
<div class= "Con" >
<ul>
<li> limitations of remaining words </li>
<li><textarea cols= "rows=" "8" id= "Text1" ></textarea></li>
<li> remaining characters: <span id= "Textleft" ></span></li>
</ul>
</div>
</div>

<script language= "JavaScript" >
var otext = document.getElementById ("Text1");
var otextleft = document.getElementById ("Textleft");
var re =/[^\x00-\xff]/g;
var maxLength = 40;
Window.onload = function () {
if (document.all)
Otext.onpropertychange = Textleft;
Else
otext.onkeypress = Textleft;
}
function Textleft ()
{
var str = otext.value;
str = str.replace (Re, "XX");//Chinese character when 2 characters processing if not, the Lord is lost.
otextleft.innerhtml = Maxlength-str.length;
}
</script>
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