x=screen.width;
y=screen.height;

function open_window(theURL) {
  window.open(theURL,'pop','width=1000,height=700,left='+(x/2-182)+',top='+(y/2-135)+',statusbar=0');
}

if (document.images) {
	down_normal = new Image (71,11)
	down_normal.src = "images/down1.png"
	down_over = new Image (71,11)
	down_over.src = "images/down2.png"
}
if (document.images) {
	listen_normal = new Image (48,11)
	listen_normal.src = "images/listen1.png"
	listen_over = new Image (48,11)
	listen_over.src = "images/listen2.png"
}