function swap(a, b)
{
	eval("document.images['"+a+"'].src = "+b+".src");
}

function swapi(a, b)
{
	eval('a.src = '+b+'.src');
}

function loadImage(varname, src)
{
	eval(varname+' = new Image();');
	eval(varname+'.src = \'' + src + '\';');
}

loadImage('cont','/images/continue.gif');
loadImage('cont2','/images/continue2.gif');
loadImage('cancel','/images/cancel.gif');
loadImage('cancel2','/images/cancel2.gif');