// mouseover image effect

if (document.images) {

// on images
	enter_on=new Image();
	enter_on.src="/images/let_me_in.gif";

	exit_on=new Image();
	exit_on.src="/images/no_way.gif";

// off images
	enter_off=new Image();
	enter_off.src="/images/enter.gif";

	exit_off=new Image();
	exit_off.src="/images/exit.gif";
}

function imgOn(imgName) {
	if(document.images) {
		document[imgName].src=eval(imgName + "_on.src");
	}
}

function imgOff(imgName)	{
	if(document.images) {
		document[imgName].src=eval(imgName + "_off.src");
	}
}