var xcoord = new Array();
var ycoord = new Array();
var old_xcoord = new Array();
var old_ycoord = new Array();

function get_positions(readjust) {
	if (readjust) {
		old_xcoord[1] = xcoord[1];
		old_ycoord[1] = ycoord[1];
	}
xcoord[0] = getDim(document.getElementById("menu_span1")).x+(-70);
ycoord[0] = getDim(document.getElementById("menu_span1")).y+(3);
xcoord[1] = getDim(document.getElementById("menu_span2")).x+(-70);
ycoord[1] = getDim(document.getElementById("menu_span2")).y+(3);
xcoord[2] = getDim(document.getElementById("menu_span3")).x+(-70);
ycoord[2] = getDim(document.getElementById("menu_span3")).y+(3);
xcoord[3] = getDim(document.getElementById("menu_span4")).x+(-70);
ycoord[3] = getDim(document.getElementById("menu_span4")).y+(3);
	if (readjust) {
		for (i=1;i<Layer.length;i++) {
			document.getElementById('L'+i).style.left = parseInt(document.getElementById('L'+i).style.left) - (old_xcoord[1] - xcoord[1]);
			document.getElementById('L'+i).style.top = parseInt(document.getElementById('L'+i).style.top) - (old_ycoord[1] - ycoord[1]);
		}
	}
}

get_positions(false);
window.onresize = function() {get_positions(true);};