window.onload = function() {
	
	var varthumb = document.getElementById('thumb-menu').getElementsByTagName('img');
	for (var varcount=0; varcount<varthumb.length; varcount++) {
		varthumb[varcount].style.marginTop=(80-varthumb[varcount].clientHeight)/2 + "px";
	}
	
	var varimage = document.getElementById('gallery-img');
	varimage.style.marginTop=(300-varimage.clientHeight)/2 + "px";
	varimage.style.marginBottom=(300-varimage.clientHeight)/2 + "px";

}