function rollover(id, file){
	var img = document.getElementById(id);
	img.src = file;
}
function rollout(id, file){
	var img = document.getElementById(id);
	img.src = file;
}
function rollover2(id, file){
	var img = document.getElementById(id);
	img.src = file;
}

function pop(file, param){
	window.open(file, "pop", param);
}