troubleshooting Question

Simple Javascript validation

Avatar of zamorin
zamorinFlag for Malaysia asked on
JavaScript
6 Comments1 Solution286 ViewsLast Modified:
How do I code javascript, that can validate whether the visitor fills in the regsistration number and if he does, then it should be 7 digits in length. My current code is as follows, but it doesn't work.


if (theForm.regNo.value == "" && theForm.regNo.value.length < 7)
  {
    alert("Please enter your valid Registration Number.");
    theForm.regNo.focus();
    return (false);
  }
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