var sStep = 16;
var sTimeout = 15;
var sLeft = 245;
var sRight = 245;
var wObj;
var tim;
var sDelay = 15000;

var height=1024;
var width=1280;

var userAgent = navigator.userAgent.toLowerCase();
var is_opera  = (userAgent.indexOf('opera') != -1);
//var is_saf    = ((userAgent.indexOf('applewebkit') != -1) || (navigator.vendor == 'Apple Computer, Inc.'));
var is_chrome = (userAgent.indexOf('chrome') != -1);
var is_webtv  = (userAgent.indexOf('webtv') != -1);
var is_ie     = ((userAgent.indexOf('msie') != -1) && (!is_opera) && (!is_chrome) && (!is_webtv));
var is_ie8    = ((is_ie) && (userAgent.indexOf('msie 8.') != -1));
var is_moz    = ((navigator.product == 'Gecko') && (!is_saf));
var is_kon    = (userAgent.indexOf('konqueror') != -1);
var is_ns     = ((userAgent.indexOf('compatible') == -1) && (userAgent.indexOf('mozilla') != -1) && (!is_opera) && (!is_webtv) && (!is_saf));
var is_ns4    = ((is_ns) && (parseInt(navigator.appVersion) == 4));
var is_mac    = (userAgent.indexOf('mac') != -1);

if (self.screen)
{
	width = screen.width
	height = screen.height
}
else if (self.java)
{
	var jkit = java.awt.Toolkit.getDefaultToolkit();
	var scrsize = jkit.getScreenSize();
	width = scrsize.width;
	height = scrsize.height;
}

var leftpos = (width/2)-sLeft;
var toppos = (height/2)-sLeft;

function winOpen()
{
	wObj.style.display = 'block';

	if (sLeft > 0)
	{
		sRight += sStep;
		sLeft -= sStep;

		var rect;
		if(is_ie8 || is_opera)
		{
			rect = 'rect(300, '+ sRight +'px, 300+500, '+ sLeft +'px)';
		}
		else
		{
			rect = 'rect(auto, '+ sRight +'px, auto, '+ sLeft +'px)';
		}

		wObj.style.left = leftpos;
		wObj.style.top = toppos;

		wObj.style.clip = rect;
		setTimeout(winOpen, sTimeout);
	}
}

function winClose()
{
	if (sLeft < sRight)
	{
		sRight -= sStep;
		sLeft += sStep;

		var rect;
		if(is_ie8 || is_opera)
		{
			rect = 'rect(300, '+ sRight +'px, 300+500, '+ sLeft +'px)';
		}
		else
		{
			rect = 'rect(auto, '+ sRight +'px, auto, '+ sLeft +'px)';
		}
		wObj.style.clip = rect;
		setTimeout(winClose, sTimeout);
	}
	else wObj.style.display = 'none';
}

function hidewin()
{
	tim = setTimeout("divwin.style.display = 'none'", sDelay)
}