function changePic()
{
	if (window.document.images[changePic.arguments[0]] != undefined) 
		window.document.images[changePic.arguments[0]].src = changePic.arguments[1].src;
}

function selectStyleSheet()
{
	if (document.layers)
		document.write('<link rel=stylesheet type="text/css" href="ns4.css">');
	else if (navigator.appName == "Opera")
		document.write('<link rel=stylesheet type="text/css" href="opera.css">');
}