Alert to check for a text box containing <a href=

JavaScript
1

I have very little javascript knowledge so would appreaciate some help onthis please.

I have the following code on my form test.

		  if (formx.description.value == "") {
        	alert("Please enter a description of what you are contacting David Brown about.");
			formx.description.focus()
        	return false;
        }

But I also want to be able to test to see if the message field contains the following

<a href=
</a>

If it does I would like an error message that comes up saying you can’t include links. Is this possible?

2

Hi Struggling,

Try something like…

dirtyValue = document.formx.description.value;
cleanValue = dirtyValue.replace(/<a\\b[^>]*>(.*?)<\\/a>/i,"");

… this will remove <a>'s from the designated value.

3

Will this stop the form being submitted?

4

This strip_tags code might be very useful for you:
JavaScript strip_tags

That way you can automatically remove all tags from the form value:


formx.description.value = striptags(formx.description.value);

Or you can choose to remove only certain tags that you care about, such as links and scripts:


formx.description.value = striptags(formx.description.value, '<a><script>');