DoubleClick Exit

doubleclick_exit.js

/*
 * addExit - Add DoubleClick exit
 * 
 * @param {String | Array} el  - id, or array of element ids to accept the event
 * @param {String} evt - event to listen for
 * @param {String} ext - name of the DoubleClick exit
 * @param {String} alt - URL of DoubleClick exit override if exists
 * Usage addExit.event('cta', 'click', 'Main Exit');
 */
var addExit = {
    event: function( el, evt, ext, alt ) {
        if(typeof el === 'string') {
            var ele = document.getElementById(el);
            ele.addEventListener(evt, function(){ addExit.exit( ext, alt ); }, false);
        } else if (Array.isArray(el)) {
            for (var j=0, len = el.length; j < len; j++) {
                var ele = document.getElementById(el[j]);
                ele.addEventListener(evt, function(){ addExit.exit( ext, alt ); }, false);
            }
        }
    },
    exit: function( ext, alt ) {
        return ( alt ) ? Enabler.exit(ext, alt) : Enabler.exit(ext);
    }
};