function changeto(highlightcolor)
{
	source=event.srcElement
	if (source.tagName=="TR"||source.tagName=="TABLE")
	return
	while(source.tagName!="TR")
	source=source.parentElement
	if (source.style.backgroundColor!=highlightcolor&&source.id!="ignore")
	source.style.backgroundColor=highlightcolor
}

function changeback(originalcolor)
{
	if (event.fromElement.contains(event.toElement)||source.contains(event.toElement)||source.id=="ignore")
	return
	if (event.toElement!=source)
	source.style.backgroundColor=originalcolor
}