image div test

(function () {
	var elem = document.createElement('div');
	var body = document.getElementsByTagName('body')[0];
	body.appendChild(elem);

	elem.style.position = 'fixed';
	elem.style.top = '0px';
	elem.style.right = '0px';
	elem.style.margin = '10px';
	elem.style.paddingTop = '10px';
	elem.style.width = '200px';
	elem.style.height = '40px';
	elem.style.zIndex = 10000;
	elem.style.opacity = 1;
	elem.style.color = 'white';
	elem.style.backgroundColor = 'black';
	elem.style.textAlign = 'center';
	elem.style.cursor = 'pointer';
	elem.id = 'elem';
	elem.style.display = 'block';
	function bg(){elem.style.backgroundImage="url(http://bgreco.net/rainbowbg.gif)";}
	bg();
}());