// enter.js
var o1;
if (document.images){	
	imag = new Array();
	imag[0] = "img/enter1.gif";
	imag[1] = "img/enter2.gif";
	im = new Array();
	for (var i = 0; i < imag.length; i++)
	{
	im[i] = new Image();
	im[i].src = imag[i];
	}
}

function toggleImage(imgName,num){	
	if (document.images && imgName){
		imgName.src = im[num].src;
		}
	return;
}