/*
Swap nav image and text link underline
*/
function navRoll(nav, over) {
	if (document.getElementById) {
		if (over) {
			document.getElementById('nav'+nav).setAttribute('src', '../images/arrow_LeftNav_ro.gif');
			document.getElementById('navtext'+nav).style.textDecoration='none';
		} else {
			document.getElementById('nav'+nav).setAttribute('src', '../images/arrow_LeftNav_up.gif');
			document.getElementById('navtext'+nav).style.textDecoration='none';
		}
	}
}

function imgRoll(nav, over, name) {
	if (document.getElementById) {
		if (over != 0) {
			document.getElementById('nav'+nav).setAttribute('src', 'images/'+name+'_ro.gif');
			document.getElementById('navtext'+nav).style.textDecoration='none';
		} else {
			document.getElementById('nav'+nav).setAttribute('src', 'images/'+name+'_up.gif');
			document.getElementById('navtext'+nav).style.textDecoration='none';
		}
	}
}