$("#myHref").die("click", aClick); // this will remove any existing event handlers
$("#myHref").click(yourhandler);   // add your handler

<a href=".." onclick="yourhandler">

function doSomething(e)
{
    if (!e) var e = window.event;
    e.cancelBubble = true;
    if (e.stopPropagation) e.stopPropagation();
}