FREE JavaSCRIPT - alphanumeric validation string, alpha numeric check using JS

About

This script function will help you to validate a string / character for alphanumeric values.

Features

a)The javascript function will return false when the string that is passed contains character other than alphanumeric.
b)It returns true on correct validation.
c)Just copy the code in to your page and use it.

Preview

Alpha numeric Testing :
Enter a character / string and test it

Code

<!-- Script by hscripts.com -->
<script type="text/javascript">
function alphanumeric(alphane)
{
	var numaric = alphane;
	for(var j=0; j<numaric.length; j++)
		{
		  var alphaa = numaric.charAt(j);
		  var hh = alphaa.charCodeAt(0);
		  if((hh > 47 && hh<58) || (hh > 64 && hh<91) || (hh > 96 && hh<123))
		  {
		  }
		else	{
                         alert("Your Alpha Numeric Test Failed");
			 return false;
		  }
 		}
 alert("Your Alpha Numeric Test Passed");
 return true;
}
</script>
<!-- Script by hscripts.com -->

Release Date - 15-12-2004
Get free version without ©copyright link for just 5

For customization of this script or any script development, contact us at support@hscripts.com

Usage

Here we have explained with a form
a)Creating the form using following HTML code
    <form name="test" onSubmit="return alphanumeric(test.mailf.value)">
    <input name=mailf type=text>
    <input type=submit value=validate>
    </form>
b)The alphanumeric() function is triggered on submission of the form.
c)Just copy the javascript code and use it for free.

License

- The javascript (misspelled as java script) is given under GPL License
- i.e. Free use for those who use the codes as it is.
- Free, if your modification does not remove our copyright information and links.
- Click Here for detailed license information.
- You can purchase the script if your requirements does not meet our GPL License terms.

Alphanumeric Validation Function