function moveElements(){
	var body = document.getElementsByTagName("body")[0];

	var mask =  document.getElementById("ELEMENT_screen");
	moveElement("ELEMENT_screen",body);
	setOpacity(mask,40);												
	moveElement("ELEMENT_modal",body);
}
function moveElement(elemName, theBody){
	var Elem = document.getElementById(elemName);
	Elem.parentNode.removeChild(Elem);
	theBody.appendChild(Elem);	
}