function alertBox(str)
{
	alert(str);
}
function showDiv(target, content)
{
	document.getElementById(target).innerHTML = content;
	document.getElementById(target).style.zIndex = '50';
	document.getElementById(target).style.display = 'block';
	document.getElementById(target).style.backgroundImage = "url(graphics/semitrans.png)";
}
function hideDiv(target)
{
	document.getElementById(target).innerHTML = '';
	document.getElementById(target).style.zIndex = '-10';
	document.getElementById(target).style.display = 'none';
}