var banned;

function grabBanner()
{
	banned = document.getElementById('banner');
}

function popBanner(bn)
{
	banned.style.backgroundImage = "url('_images/" + bn + "_bg.jpg')";
}





//platform and browser check

var ISieWIN = false;
var platform = navigator.appVersion;
var browser = navigator.appName;

if ((platform.indexOf("Win") >= 0) || (platform.indexOf("NT") >= 0))
{
	if(browser == "Microsoft Internet Explorer")
	{
		
		//for layer opacity
		ISieWIN = true;

		//for pngs
		document.writeln('<style type="text\/css">img { visibility:hidden; } <\/style>');
		window.attachEvent("onload", fnLoadPngs);
		
	}	
}



//png fix in IE windows

function fixToo()
{
	if(ISieWIN )
	{
		fnLoadPngs();
	}
}



function fnLoadPngs() {
	var rslt = navigator.appVersion.match(/MSIE (\d+\.\d+)/, '');
	var itsAllGood = (rslt != null && Number(rslt[1]) >= 5.5);

	for (var i = document.images.length - 1, img = null; (img = document.images[i]); i--) {
		if (itsAllGood && img.src.match(/\.png$/i) != null) {
			var src = img.src;
			img.style.width = img.width + "px";
			img.style.height = img.height + "px";
			img.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + src + "', sizingMethod='scale')"
			img.src = "_images/spacer.gif";
		}
		img.style.visibility = "visible";
	}
}





function preloader() 
{

     // counter
     var i = 0;

     // create object
     imageObj = new Image();

     // set image list
     
    var images = new Array();
	images[0]="_images/building_bg.jpg";
	images[1]="_images/car_bg.jpg";
	images[2]="_images/factory_bg.jpg";
	images[3]="_images/plane_bg.jpg";
	images[4]="_images/ship_bg.jpg";



     // start preloading
     for(i=0; i<=images.length; i++) 
     {
          imageObj.src=images[i];
     }

}