Question

If the current page URL has an argument ‘myid1’ or ‘myid2’ in the querystring, for each link in my webpage with class ‘rewrite’, I want the link href’s querystring to be replaced by the current page URL’s querystring. I’m using the code given below. Since I’m new to javascript, I’m not sure if its optimized. I want it to execute as fast as possible. Please help. Thanks in advance 🙂

<script type='text/javascript' src='https://ajax.googleapis.com/ajax/libs/jquery/1.6.4/jquery.min.js'></script>

<script type="text/javascript">
$(function() {
    var requestid = gup('myid1');
    if (requestid) {
        $("a.rewrite").each(function() {
            var base = this.href;
            var pos = base.indexOf("?");
            if (pos != -1) {
                base = base.substr(0, pos);
            }
            this.href = base + "?myid1=" + requestid;
        })
    }
    var requestid2 = gup('myid2');
    if (requestid2) {
        $("a.rewrite").each(function() {
            var base = this.href;
            var pos = base.indexOf("?");
            if (pos != -1) {
                base = base.substr(0, pos);
            }
            this.href = base + "?myid2=" + requestid2;
        })
    }
})

function gup( name )
{
  name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
  var regexS = "[\\?&]"+name+"=([^&#]*)";
  var regex = new RegExp( regexS );
  var results = regex.exec( window.location.href );
  if( results == null )
    return "";
  else
    return results[1];
}
</script>

<a href="http://www.website.com/?someid=1234" class="rewrite">Hyperlink</a>

Answer 1

$(function() {
    var requestid = gup('myid1');
    var requestid2 = gup('myid2');

    if (requestid || requestid2) {
        $("a.rewrite").each(function() {
            var base = this.href;
            var pos = base.indexOf("?");
            if (pos != -1) {
                base = base.substr(0, pos);
            }

            if (requestid){
                this.href = base + "?myid1=" + requestid;
                if (requesid2){
                    this.href += "?myid2=" + requestid;
                }
            } else {
                this.href = base + "?myid2=" + requestid;
            }

        })
    }

});