function printpdf() {
	var x = document.getElementById("pdf");
	x.click();
	x.setActive();
	x.focus();
	x.print();
}
function change_div1(game_frame_bg,content)
{
  document.getElementById(game_frame_bg).style.backgroundImage = 'url(/metoyou/images/game_example1.gif)';
}
function change_div2(game_frame_bg,content)
{
  document.getElementById(game_frame_bg).style.backgroundImage = 'url(/metoyou/images/game_example2.gif)';
}

function kill_div(game_frame_bg)
{
  document.getElementById(game_frame_bg).style.background = 'none ' // or whatever default you want
}