var wl = document.querySelector('#wl');

if(wl==null){
	wl = document.querySelector('#wlLEP');
}

function receiveMessage(ev) {
    if (ev.data.command == 'resizeframe' && ev.data.h && ev.data.w) {
        wl.style.height = (ev.data.h) + 'px';
    }
}
window.addEventListener("message", receiveMessage, false);