function popUp(URL) {
	day = new Date();
	id = day.getTime();
	eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=1,width=800,height=600,left = 400,top = 262');");
}

function move_in(img_name,img_src) {
  document[img_name].src=img_src;
}

function move_out(img_name,img_src) {
  document[img_name].src=img_src;
}