function pop(type){
	var trilogy_open = "trilogy_" + type + "_01.html";
	var peake_open = "peake_" + type + "_01.html";
	if (type == 'covers'){
				var covers_win = window.open(trilogy_open,'covers_win','toolbar=0,location=0,status=0,menubar=0,scrollbars=1,resizable=1,width=437,height=437');
				covers_win.focus();
	} else if (type == 'sketches') {
				var sketches_win = window.open(trilogy_open,'sketches_win','toolbar=0,location=0,status=0,menubar=0,scrollbars=1,resizable=1,width=437,height=437');
				sketches_win.focus();
	} else if (type == 'originals') {
				var originals_win = window.open(peake_open,'originals_win','toolbar=0,location=0,status=0,menubar=0,scrollbars=1,resizable=1,width=437,height=437');
				originals_win.focus();
	}
	return false;
}