function showAltImage()
{
	getObject('rolloverImage').src='images/diagonal-flutes.jpg'
}
function showMainImage()
{
	getObject('rolloverImage').src='images/newfrontflute.jpg'
}


function getObject(obj)
{
	var theObj;
	if (document.all) {
		if (typeof obj=='string') {
			return document.all(obj);
		} else {
			return obj.style;
		}
	}
	else if (document.getElementById) {
		if (typeof obj=='string') {
			return document.getElementById(obj);
		} else {
			return obj.style;
		}
	}
	else if (document.layers)
	{
		if (typeof obj=='string') {
			return getObjNN4(document, obj);
		} else {
			return obj.style;
		}
	}
	return null;

}
/* --------------------------- */
/* get an object in netscape 4 */
/* --------------------------- */
function getObjNN4(obj,name)
{
	var x = obj.layers;
	var foundLayer;
	for (var i=0;i<x.length;i++)
	{
		if (x[i].id == name)
		 	foundLayer = x[i];
		else if (x[i].layers.length)
			var tmp = getObjNN4(x[i],name);
		if (tmp) foundLayer = tmp;
	}
	return foundLayer;
}