JavaScript Regex question

Posted by Vincent on Stack Overflow See other posts from Stack Overflow or by Vincent
Published on 2010-06-11T15:36:58Z Indexed on 2010/06/11 15:53 UTC
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All,

I have following function to check for invalid symbols entered in a text box and return true or false. How can I modify this function to also check for occurrences like http:// and https:// and ftp:// return false if encountered ?

function checkURL(textboxval) {
   return ! (/[<>()#'"]|""/.test(textboxval));
}

Thanks

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