function divStyle(thediv)
{
	if (document.getElementById) return document.getElementById(thediv).style;
}


function showThisTab(whichLayer, modNum) {

	if (modNum != null) {
		for (var i = 0; i < tabNames[modNum].length; i++) {
		eval("imgFlip('" + tabNames[modNum][i] + "_tab','" + tabNames[modNum][i] + "_tab_off')");
		}
	if (document.getElementById) {
			for (var i = 0; i < tabNames[modNum].length; i++) {
		
			eval("divStyle('pad" + tabNames[modNum][i] + "Tab').visibility = 'hidden'");
			
			}
		eval("imgFlip('" + whichLayer + "_tab','" + whichLayer + "_tab_on')");
		divStyle('pad' + whichLayer + 'Tab').visibility = 'visible';
	}
	}
	else {
	for (var i = 0; i < tabNames.length; i++) {
		eval("imgFlip('" + tabNames[i] + "_tab','" + tabNames[i] + "_tab_off')");
	}
	if (document.getElementById) {
		for (var i = 0; i < tabNames.length; i++) {
			eval("divStyle('pad" + tabNames[i] + "Tab').visibility = 'hidden'");
		}

		eval("imgFlip('" + whichLayer + "_tab','" + whichLayer + "_tab_on')");
		divStyle('pad' + whichLayer + 'Tab').visibility = 'visible';
	}
	}
}