TextBox JavaScript Validation

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Aishwarya

TextBox JavaScript Validation
1 Answer(s) 5 years and 2 months ago
Posted in : Java Beginners

Can you please give an example of text box validation in JavaScript?

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April 8, 2008 at 7:31 PM

hi

<html>
<head>
<script language=javascript>
var count = "125";
function limiter(){
var tex = document.myform.comment.value;
var len = tex.length;
if(len > count){
tex = tex.substring(0,count);
document.myform.comment.value =tex;
return false;
}
document.myform.limit.value = count-len;
}

</script>
</head>
<body onload="initPosition(document.forms[0].txtLayoutViewer)">
<form name="myform" METHOD=POST>
<b>This is teaxbox:</b>
<input type="text" name="text" size="30">
<br/>
<b>This is teaxarea:</b>
<textarea name=comment wrap=physical rows=7 cols=40 onkeyup=limiter()></textarea><br>
<script language=javascript>
document.write("<input type=text name=limit size=4 readonly value="+count+">");
</script>
<p><input type="button" onclick="comment.value=text.value" value="Add">
<input type="reset" value="Reset" name="reset"></p>
</form>

</body>

</html>

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