<!-- Hide script from old browsers

function popup(url,winWidth,winHeight) 
{
	winTop = (screen.height - winHeight) / 2;
	winLeft = (screen.width - winWidth) / 2;
	window.open(url,"","width=" + winWidth + ",height=" + winHeight + ",top=" + winTop  + ",left=" + winLeft  + ",resizable=no,scrollbars=no,toolbar=no");
}

if (document.images)
{
	btn1_1 = new Image
	btn1_2 = new Image
	btn2_1 = new Image
	btn2_2 = new Image

	btn1_1.src = "images/enter-bg1.gif"
	btn1_2.src = "images/enter-bg2.gif"
	btn2_1.src = "images/enter-eng1.gif"
	btn2_2.src = "images/enter-eng2.gif"
}

function changeImage(imgField, newImg)
{
	if (document.images)
	{
		document.getElementById(imgField).src = eval(newImg + ".src");
	}
}

// End hidding script from old browsers -->