detect html link and protect XSS javascript

/**
* author Redcrow
* www.na5cent.blogspot.com
* 29/01/2013
*/
Urls = {
    urlRegExPattern : /(\b(((https?|ftp|file):\/\/)|(www\.))+[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/ig,

    detectLink : function(text){
        var replace = text.replace(/&/g, '&')
                          .replace(/>/g, '>')
                          .replace(/</g, '&lt;')
                          .replace(/"/g, '&quot;')
                          .replace(this.urlRegExPattern, function(currentUrl){
                              var urlLink = currentUrl;
                              var urlText = currentUrl;
                              if(!urlLink.match(/\b(https?)/)){
                                  urlLink = "http://" + urlLink;
                              }  
                              return "<a href='" + urlLink + "' target='_blank'>" + urlText + "</a>";
                          });
        return replace;
    }     
}

/* 
* example to use
* window.onload = function(){
*     $("#sendButton").click(function(){
*         var value = $("#inputText").val();
*         var result = Urls.detectLink(value);
*         $("#result").html(result);
*     });   
* };
*/