var d, dom, ie, ie4, ie5x, moz, mac, win, lin, old, ie5mac, ie5xwin, op;

d = document;
n = navigator;
na = n.appVersion;
nua = n.userAgent;
win = ( na.indexOf( 'Win' ) != -1 );
mac = ( na.indexOf( 'Mac' ) != -1 );
lin = ( nua.indexOf( 'Linux' ) != -1 );

if ( !d.layers ){
	dom = ( d.getElementById );
	op = ( nua.indexOf( 'Opera' ) != -1 );
	konq = ( nua.indexOf( 'Konqueror' ) != -1 );
	saf = ( nua.indexOf( 'Safari' ) != -1 );
	moz = ( nua.indexOf( 'Gecko' ) != -1 && !saf && !konq);
	ie = ( d.all && !op );
	ie4 = ( ie && !dom );

	/*
	ie5x tests only for functionality. ( dom||ie5x ) would be default settings.
	Opera will register true in this test if set to identify as IE 5
	*/

	ie5x = ( d.all && dom );
	ie5mac = ( mac && ie5x );
	ie5xwin = ( win && ie5x );
}

function changealpha(metal) {
	if (moz){
		changealphaMoz(metal);
	}else{
		changealphaIE(metal);
	}
}

function getAlpha(metal) {
	if (moz){
		getAlphaMoz(metal)
	}else{
		getAlphaIE(metal)
	}
}

function changealphaIE(metal) {
	mfo=metal.filters['alpha'].opacity;
	mfo-=33;
	if (mfo<0) mfo=0;
	metal.filters['alpha'].opacity=mfo;
}

function getAlphaIE(metal) {
	mfo=metal.filters['alpha'].opacity;
	return mfo;
}


function playgamesoundIE(metal){
	var opacity = getAlpha(metal);
	if(mfo>0){
		document.gamesound.play();
	}
}


function changealphaMoz(metal) {
	mfo=metal.style.MozOpacity;
	mfo-=33;
	if (mfo<0) mfo=0;
	metal.style.MozOpacity=mfo;
}

function getAlphaMoz(metal) {
	mfo=metal.style.MozOpacity;
	return mfo;
}

function playgamesoundMoz(metal){
	var opacity = getAlpha(metal);
	if(mfo>0){
		document.gamesound.play();
	}
}

function playagainOnMouseOver(){

}

function playagainOnMouseClick(){
	location.reload(false);
}

function claimprizeOnMouseClick(cardNum, sessionID){
	window.open('http://crimson-veil.com/entertainment/scratchCardClaim.php?SessionID='+sessionID+'&cardNumber='+cardNum, 'claimprize', 'status=no,toolbar=no,location=no,width=350,height=275,left=300,top=300');
}

function claimprizeOnMouseOver(){

}

function prizesOnMouseClick(){
	window.open('http://crimson-veil.com/entertainment/scratchCardPrizes.php', 'prizes', 'status=no,toolbar=no,location=no,width=410,height=345,left=300,top=300');
}

function prizesOnMouseOver(){

}