Javascript Essentials Part 5

by Hiroshi on November 2, 2008

in Essentials, Javascript

Talk about form controls via Javascript. I have been hunting down js control over forms from the day I started web development. I love the control over programming and its essential too. Here in this javascript essentials part I will share with you some essential form controls.

  • Accept Terms & Go
  • Advanced Email Address Validator
  • Auto Drop Down List – Select from drop down and list updates accordingly
  • Auto Month DropDown with Date and Year
  • Auto Phone Number Format
  • Auto Tab
  • Character Counter
  • Check Un-check all from check boxes
  • Check Un-check all 2
  • Characters Disallow
  • Preview Image While Uploading
  • Submit Once

Accept Terms and Go

This script is about forcing user to click check box in order to accept terms or policy.

<html>
<head>
<SCRIPT LANGUAGE="JavaScript">
<!-- Original:  Colin Pc  -->
<!-- Web Site:  http://www.insighteye.com/ -->
<!-- This script and many more are available free online at -->
<!-- The JavaScript Source!! http://javascript.internet.com -->
<!-- Begin
function checkCheckBox(f){
if (f.agree.checked == false )
{
alert('Please check the box to continue.');
return false;
}else
return true;
}
//  End -->
</script>
</head>
<body>
<form action="www.tecnonascita.com" method="POST" onsubmit="return checkCheckBox(this)">
I accept: <input type="checkbox" value="0" name="agree">
<input type="submit" value="Continue Order">
<input type="button" value="Exit" onclick="document.location.href='backpage.html';">
</form>
</body>
</html>

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