LinkManager OnClientPasteHtml Tag Manipilation

Hello,

I've added some logic to the OnClientPasteHtml method in Javascript, which ensures that the <a> tag has a href of "#" and adds a OnClick attribute. We're doing this so that mailto links are (roughly) encoded, so bots do not spam the email address, etc.

This is my code:

function OnClientPasteHtml(sender, args) {
    var commandName = args.get_commandName();
    var value = args.get_value();

if (commandName == "LinkManager" || commandName == "SetLinkProperties") {
        breakme: if (/href="mailto:([^@]+)@([^?"]+)(?:\?subject=([^"]+))?[^>]+>([^<]+)/i.test(value)) {
            var valueSplit = value.match(/href="mailto:([^@]+)@([^?"]+)(?:\?subject=([^"]+))?[^>]+>([^<]+)/i);

            // Email address
            if (typeof valueSplit[1] == "undefined" || typeof valueSplit[2] == "undefined") {
                break breakme;
            }
            var addrPrefix = valueSplit[1];
            var addrSuffix = valueSplit[2];
            // Subject
            var subject = '';
            if (typeof valueSplit[3] !== "undefined") {
                subject = valueSplit[3];
            }
            // Text
            var linkText = '';
            if (typeof valueSplit[4] !== "undefined") {
                linkText = valueSplit[4];
            }

            // Final output example = <a onclick="href='mailto:'+'first.name'+'@'+'domain.com'+'?subject=hello world'" href="#">Email Me.</a>
            var valueFinal = '';
            if (Prototype.Browser.IE) {
                // TODO: Fix IE bug
            }
            else{
                valueFinal = "<a onclick=\"href='mailto:'+'" + addrPrefix + "'+'@'+'" + addrSuffix + "'+'?subject=" + subject + "'\" href=\"#\">" + linkText + "</a>";
            }
            args.set_value(valueFinal);
        }
}

It works perfectly, in Firefox, but I seem to be getting odd results in IE (and possibly Chrome).

When I debug in IE, I can see that valuFinal is in the correct format, but then when you click or view html, the <a> tag changes, to this:

<a onclick="href='mailto:'+'website'+'@'+'domain.com'+'?subject=domain.com feedback'" href="mailto:website@domain.com?subject=domain.com feedback">mailto:website@domain.com?subject=domain.com feedback</a>

As you can see, the href is not a "#" and the link text is being replaced by the same mailto link.

I use Sitecore.NET 7.2 (rev. 140526), which is using Telerik 2012.1.607.35 DLL version.

We don't really want to upgrade any versions so a fix for my current state will be ideal.

Any information will be great! Thanks :)