function video_window(href_link)
{
	var new_win;
	
	var window_width = 330;
	var window_height = 250;
	
 	var left_pos = screen.availWidth/2 - window_width/2;
	var top_pos = screen.availHeight/2 - window_height/2;
	
	new_win = window.open(href_link,'_blank','width='+window_width+',height='+window_height+',top='+top_pos+',left='+left_pos+',toolbar=no,menubar=no,scrollbars=no,resizable=yes,location=no,directories=no,status=no');
}

function video_window_big(href_link)
{
	var new_win;
	
	var window_width = 490;
	var window_height = 370;
	
 	var left_pos = screen.availWidth/2 - window_width/2;
	var top_pos = screen.availHeight/2 - window_height/2;
	
	new_win = window.open(href_link,'_blank','width='+window_width+',height='+window_height+',top='+top_pos+',left='+left_pos+',toolbar=no,menubar=no,scrollbars=no,resizable=yes,location=no,directories=no,status=no');
}

function invite_window()
{
	var new_win;
	
	var window_width = 520;
	var window_height = 420;
	
 	var left_pos = screen.availWidth/2 - window_width/2;
	var top_pos = screen.availHeight/2 - window_height/2;
	
	new_win = window.open('/2008/invite_form.html','_blank','width='+window_width+',height='+window_height+',top='+top_pos+',left='+left_pos+',toolbar=no,menubar=no,scrollbars=no,resizable=yes,location=no,directories=no,status=no');
}