// Swap divs

function showdiv(elementID) {
	var whichdiv = document.getElementById(elementID);
	whichdiv.style.display = 'block'; 
}

function hidedivs(divno) {
	for (i=divno; i>0; i--){
		var whichdiv = document.getElementById('over'+i);
		whichdiv.style.display = 'none';
	}
}

function hidedivs1(divno) {
	for (i=divno; i>0; i--){
		var whichdiv = document.getElementById('sideover'+i);
		whichdiv.style.display = 'none';
	}
}