// JavaScript Document
function popUpPosition () {
	// get window height
	windowHeight = window.innerHeight ? window.innerHeight : document.documentElement.clientHeight ? document.documentElement.clientHeight : document.body.clientHeight;
	// get pop up height
	finishedDrop = document.getElementById('finished_drop_outer').offsetHeight;
	// calculate position from top
	marginTop = ((windowHeight - finishedDrop)/2);
	//apply to pop up
	document.getElementById('finished_drop_outer').style.top = marginTop+'px';
}