function DivAltDivs(divid1,divclass1,divid2,divclass2) {
    document.getElementById(divid1).className = divclass1;
	document.getElementById(divid2).className = divclass2;
}

function DivAltHide(divid,divclass1,divclass2) {
	if (divclass2 == null)
	{
		divclass2 = 'hidediv';
	}
    document.getElementById(divid).className == divclass1 ? document.getElementById(divid).className = divclass2 : document.getElementById(divid).className = divclass1;
}