jQuery special-event "clickLimit" [only fires the event if a duration threshold hasn't passed]

jQuery.clickLimit.js

jQuery.event.special.clickLimit = {
    delegateType: "mousedown",
    bindType: "mousedown",
    handle: function( event ) {
        var handleObj = event.handleObj,
            startTime = new Date().getTime(),
            threshold = event.data.threshold || 500;
 
        $(this)
            .unbind('mouseup.clickLimit')
            .bind('mouseup.clickLimit', function(){
                var delta = new Date().getTime() - startTime;
                delta < threshold && fire();
            })

        function fire(){
            event.type = handleObj.origType;
            handleObj.handler.apply( this, arguments );
            event.type = handleObj.type;
        }
     
        return null;
    }
};

Example:

$("body").on( "clickLimit", {threshold:100}, function(e){
    var randomColor = "#"+((1<<24)*Math.random()|0).toString(16);
    document.body.style.background = randomColor;
});