try {
  document.execCommand("BackgroundImageCache", false, true);
} catch(err) {}
function showResolution() {
	document.write('Your screen resolution is ' + screen.width + 'x' + screen.height);
}
function toggleCheckbox(id)
{
	var elem = document.getElementById(id);
	elem.checked = !elem.checked;
}
function changeClass(elem,cls)
{
	if(elem.className)
		elem.className=cls;
}
function GetXmlHttpObject()
{
	var xmlHttp = null;
	try
	{
		// Firefox, Opera 8.0+, Safari
		xmlHttp = new XMLHttpRequest();
	}
	catch (e)
	{
		// Internet Explorer
		try
		{
			xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch (e)
		{
			xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
		}
	}
	return xmlHttp;
}

/****************************/
/*        banner ads        */
/****************************/
var bigadimgs = new Array();
var smalladimgs = new Array();
var adlinks = new Array();

bigadimgs[0] = "banner1_468.gif";
smalladimgs[0] = "banner1_125.gif";
adlinks[0] = "mailto:tccrra@aol.com";

bigadimgs[1] = "aim_468.jpg";
smalladimgs[1] = "aim_125.jpg";
adlinks[1] = "http://www.aimtire.com";

bigadimgs[2] = "ladijonaise_468.jpg";
smalladimgs[2] = "ladijonaise_125.jpg";
adlinks[2] = "http://www.ladijonaise.com/";

bigadimgs[3] = "fastlane_468.jpg";
smalladimgs[3] = "fastlane_125.jpg";
adlinks[3] = "http://www.raceschool.com/arrive_and_race/index.html";

bigadimgs[4] = "turnfast_468.gif";
smalladimgs[4] = "turnfast_125.gif";
adlinks[4] = "http://www.turnfast.com";

bigadimgs[5] = "passauto_468.jpg";
smalladimgs[5] = "passauto_125.jpg";
adlinks[5] = "http://www.autosportsupplies.com";

bigadimgs[6] = "ladijonaise_468.jpg";
smalladimgs[6] = "ladijonaise_125.jpg";
adlinks[6] = "http://www.ladijonaise.com/";

bigadimgs[7] = "garacing_468.jpg";
smalladimgs[7] = "garacing_125.jpg";
adlinks[7] = "http://www.ga-racing-usa.com";

bigadimgs[8] = "dawallz-lg.jpg";
smalladimgs[8] = "dawallz-sm.jpg";
adlinks[8] = "http://dawallz.net/wallpapers/cars/2.aspx";

bigadimgs[9] = "tees_468.jpg";
smalladimgs[9] = "tees_125.jpg";
adlinks[9] = "http://www.tees-usa.com";

bigadimgs[10] = "fx_468.jpg";
smalladimgs[10] = "fx_125.jpg";
adlinks[10] = "http://fxperformance.com";

bigadimgs[11] = "xshocks_468.jpg";
smalladimgs[11] = "xshocks_125.jpg";
adlinks[11] = "http://www.xshocks.com";

bigadimgs[12] = "upr_468.jpg";
smalladimgs[12] = "upr_125.jpg";
adlinks[12] = "http://www.ultraperformance.com";

bigadimgs[13] = "dawallz-lg.jpg";
smalladimgs[13] = "dawallz-sm.jpg";
adlinks[13] = "http://dawallz.net/wallpapers/cars/2.aspx";

bigadimgs[14] = "cool-suit_468.jpg";
smalladimgs[14] = "cool-suit_125.jpg";
adlinks[14] = "http://forums.touringcarclub.net/viewtopic.php?t=185";

bigadimgs[15] = "cool-suit_468.jpg";
smalladimgs[15] = "cool-suit_125.jpg";
adlinks[15] = "http://forums.touringcarclub.net/viewtopic.php?t=185";

bigadimgs[16] = "kure_468.jpg";
smalladimgs[16] = "kure_125.jpg";
adlinks[16] = "http://www.kuremotorsports.com/home.aspx";

bigadimgs[17] = "kure_468.jpg";
smalladimgs[17] = "kure_125.jpg";
adlinks[17] = "http://www.kuremotorsports.com/home.aspx";

bigadimgs[18] = "spc_468.jpg";
smalladimgs[18] = "spc_125.jpg";
adlinks[18] = "http://www.sportsphoto2canvas.com";

var adlen = bigadimgs.length;

function showBigAd()
{
	var rand = Math.floor(adlen*Math.random());
	var img = bigadimgs[rand];
	var link = adlinks[rand];
	document.write("<a href=\""+link+"\" title=\"Go to "+link+"\" target=\"adlinks\"><img height=\"60\" src=\"/images/old_ads/"+img+"\" border=\"0\" alt=\"Go to "+link+"\"></a>");
}

function showSmallAd()
{
	var rand = Math.floor(adlen*Math.random());
	var img = smalladimgs[rand];
	var link = adlinks[rand];
	document.write("<a href=\""+link+"\" title=\"Go to "+link+"\" target=\"adlinks\"><img src=\"/images/old_ads/"+img+"\" alt=\"Go to "+link+"\"></a>");
}