var prevClicked = "";

function staySet(curr){

tmpStr = curr.toString();
if (prevClicked != "")
{
document.getElementById(prevClicked).disabled = false;
document.getElementById(prevClicked).src ='IMAGES/MENU/'+ prevClicked+'1.jpg'
}
document.getElementById(tmpStr).disabled = true;
document.getElementById(tmpStr).src = 'IMAGES/MENU/'+tmpStr+'3.jpg';
prevClicked = tmpStr;
}

function SwapImage(curr){

tmpStr = curr.toString();
var swap = event.type;
if (swap == 'mouseover'){document.getElementById(curr).src='IMAGES/MENU/'+tmpStr+'3.jpg'}
if (swap == 'mouseout'){document.getElementById(curr).src='IMAGES/MENU/'+tmpStr+'1.jpg'}
}