<!--
var gb_dimmer=null;
var gb_alertbox=null;
var gb_end_opacity=70;
var gb_cur_opacity=0;
var gb_opacity_increment=70;
var gb_fade_interval=100;

// convert all characters to lowercase to simplify testing
var agt=navigator.userAgent.toLowerCase();

// *** BROWSER VERSION ***
// Note: On IE5, these return 4, so use is_ie5up to detect IE5.
var is_major = parseInt(navigator.appVersion);
var is_minor = parseFloat(navigator.appVersion);

// Note: Opera and WebTV spoof Navigator.  We do strict client detection.
// If you want to allow spoofing, take out the tests for opera and webtv.
var is_nav  = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1)
            && (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1)
            && (agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1));
var is_nav2 = (is_nav && (is_major == 2));
var is_nav3 = (is_nav && (is_major == 3));
var is_nav4 = (is_nav && (is_major == 4));
var is_nav4up = (is_nav && (is_major >= 4));
var is_navonly      = (is_nav && ((agt.indexOf(";nav") != -1) ||
                      (agt.indexOf("; nav") != -1)) );
var is_nav6 = (is_nav && (is_major == 5));
var is_nav6up = (is_nav && (is_major >= 5));
var is_gecko = (agt.indexOf('gecko') != -1);

var is_ie     = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
var is_ie3    = (is_ie && (is_major < 4));
var is_ie4    = (is_ie && (is_major == 4) && (agt.indexOf("msie 4")!=-1) );
var is_ie4up  = (is_ie && (is_major >= 4));
var is_ie5    = (is_ie && (is_major == 4) && (agt.indexOf("msie 5.0")!=-1) );
var is_ie5_5  = (is_ie && (is_major == 4) && (agt.indexOf("msie 5.5") !=-1));
var is_ie5up  = (is_ie && !is_ie3 && !is_ie4);
var is_ie5_5up =(is_ie && !is_ie3 && !is_ie4 && !is_ie5);
var is_ie6    = (is_ie && (is_major == 4) && (agt.indexOf("msie 6.")!=-1) );
var is_ie6up  = (is_ie && !is_ie3 && !is_ie4 && !is_ie5 && !is_ie5_5);

// KNOWN BUG: On AOL4, returns false if IE3 is embedded browser
// or if this is the first browser window opened.  Thus the
// variables is_aol, is_aol3, and is_aol4 aren't 100% reliable.
var is_aol   = (agt.indexOf("aol") != -1);
var is_aol3  = (is_aol && is_ie3);
var is_aol4  = (is_aol && is_ie4);
var is_aol5  = (agt.indexOf("aol 5") != -1);
var is_aol6  = (agt.indexOf("aol 6") != -1);

var is_opera = (agt.indexOf("opera") != -1);
var is_opera2 = (agt.indexOf("opera 2") != -1 || agt.indexOf("opera/2") != -1);
var is_opera3 = (agt.indexOf("opera 3") != -1 || agt.indexOf("opera/3") != -1);
var is_opera4 = (agt.indexOf("opera 4") != -1 || agt.indexOf("opera/4") != -1);
var is_opera5 = (agt.indexOf("opera 5") != -1 || agt.indexOf("opera/5") != -1);
var is_opera5up = (is_opera && !is_opera2 && !is_opera3 && !is_opera4);

var is_webtv = (agt.indexOf("webtv") != -1); 

var is_TVNavigator = ((agt.indexOf("navio") != -1) || (agt.indexOf("navio_aoltv") != -1)); 
var is_AOLTV = is_TVNavigator;

var is_hotjava = (agt.indexOf("hotjava") != -1);
var is_hotjava3 = (is_hotjava && (is_major == 3));
var is_hotjava3up = (is_hotjava && (is_major >= 3));

// *** JAVASCRIPT VERSION CHECK ***
var is_js;
if (is_nav2 || is_ie3) is_js = 1.0;
else if (is_nav3) is_js = 1.1;
else if (is_opera5up) is_js = 1.3;
else if (is_opera) is_js = 1.1;
else if ((is_nav4 && (is_minor <= 4.05)) || is_ie4) is_js = 1.2;
else if ((is_nav4 && (is_minor > 4.05)) || is_ie5) is_js = 1.3;
else if (is_hotjava3up) is_js = 1.4;
else if (is_nav6 || is_gecko) is_js = 1.5;
else if (is_nav6up) is_js = 1.5;
else if (is_ie5up) is_js = 1.3
else is_js = 0.0;

function showAlert(content) {
	if (gb_dimmer==null) {
		gb_dimmer=document.getElementById("dimmer");
	}
	if (gb_alertbox==null) {
		gb_alertbox=document.getElementById("gbalert");
	}
	gb_alertbox.innerHTML='<div id="gbalerttitle">GameBattles Alert</div><div id="gbalertclose"><a href="javascript:hideAlert();">Close Alert</a></div><div id="gbalertcontent">'+content+'</div>';
	updateAlert();
	showDimmer();
	gb_alertbox.style.visibility="visible";
}

function hideAlert() {
	gb_alertbox.style.visibility="hidden";
	hideDimmer();
}

function updateAlert() {
	var w,h;
	if (window.innerWidth) // all except Explorer
	{
		w = window.innerWidth;
		h = window.innerHeight;
	}
	else if (document.documentElement && document.documentElement.clientWidth)
        // Explorer 6 Strict
        {
                w = Math.floor(document.documentElement.clientWidth);
                h = Math.floor(document.documentElement.clientHeight);
        }
	else if (document.body) // all other Explorers
	{
                w = Math.floor(document.body.offsetWidth);
                h = Math.floor(document.body.offsetHeight);
        }
	gb_alertbox.style.top=(h/2 - gb_alertbox.offsetHeight/2)+"px";
	gb_alertbox.style.left=(w/2 - gb_alertbox.offsetWidth/2)+"px";
}

function showDimmer() {
	updateDimmer();
	gb_dimmer.style.display="block";
	bgfade();

        /*
	if (is_ie) {
		window.attachEvent('resize', updateDimmer);
	}
	else {
		window.addEventListener('resize', updateDimmer, true);
	}
	*/
}

function hideDimmer() {
	gb_dimmer.style.display="none";
	gb_cur_opacity=0;
	if (is_ie5up) {
		gb_dimmer.style.filter="alpha(opacity=0)";
	} else if (is_nav6up) {
		gb_dimmer.style.opacity=0;
	}
}

function updateDimmer() {
        var x,y;
	if (self.pageYOffset) // all except Explorer
	{
		x = self.pageXOffset;
		y = self.pageYOffset;
	}
	else if (document.documentElement && document.documentElement.scrollTop)
	// Explorer 6 Strict
	{
		x = document.documentElement.scrollLeft;
		y = document.documentElement.scrollTop;
	}
	else if (document.body) // all other Explorers
	{
		x = document.body.scrollLeft;
		y = document.body.scrollTop;
	}
	
	var w,h;
        if (window.innerWidth) // all except Explorer
        {
                w = window.innerWidth;
                h = window.innerHeight;
        }
        else if (document.documentElement && document.documentElement.clientWidth)
        // Explorer 6 Strict
        {
		w = Math.floor(document.documentElement.clientWidth);
                h = Math.floor(document.documentElement.clientHeight);
        }
        else if (document.body) // all other Explorers
	{
        	w = Math.floor(document.body.offsetWidth);
                h = Math.floor(document.body.offsetHeight);
	}

	gb_dimmer.style.height=h+"px";
	gb_dimmer.style.top=y+"px";
}

function bgfade() {
	gb_cur_opacity+=gb_opacity_increment;

	if (is_ie5up) {
		gb_dimmer.style.filter="alpha(opacity="+Math.round(gb_cur_opacity)+")";
	}
	else if (is_nav6up) {
		gb_dimmer.style.opacity=gb_cur_opacity/100;
	}

	if (gb_cur_opacity < gb_end_opacity) {
		setTimeout("bgfade()",gb_fade_interval);
        }
}
-->
