URL Validation for input

by shatul patil

HTML

Please enter a url
<input type="text" id="myurl">
<div id="status"></div>

JavaScript

$(document).ready(function() {

        function validateURL(textval) {
          var urlregex = new RegExp( "^(http|https|ftp)\://([a-zA-Z0-9\.\-]+(\:[a-zA-Z0-9\.&amp;%\$\-]+)*@)*((25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9])\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9])|([a-zA-Z0-9\-]+\.)*[a-zA-Z0-9\-]+\.(com|edu|gov|int|mil|net|org|biz|arpa|info|name|pro|aero|coop|museum|[a-zA-Z]{2}))(\:[0-9]+)*(/($|[a-zA-Z0-9\.\,\?\'\\\+&amp;%\$#\=~_\-]+))*$");
          return urlregex.test(textval);
        }
        
        $('#myurl').change(function(){
            var url = $("#myurl").val();
            if(!validateURL(url)) {
                $("#status").html("enter Valid URL");
            }
            else {
                    $("#status").hide();
            }
        }); //event handler
    }); //document.ready