var radioState ={
	0: false,
	1: false,
	2: false,
	3: false
};

function pickSize (a) {
	if (document.sendShirt.os0[a].checked==false || radioState[a]==false ) {
		document.sendShirt.os0[a].checked=true
		var names ={
			0: 'small',
			1: 'medium',
			2: 'large',
			3: "xlarge"
		}
		for (var i=0; i < 4; i++) {
			document.getElementById(names[i]).className='off';
		};
		$(names[a]).className='on';
		$('paypalInfo').className='mode2';
		$('purchasebutton').style.display="block"
		new Effect.Pulsate('paypalInfo', {pulses: 1, duration: 1.0})
		new Effect.Pulsate('purchasebutton', {pulses: 2, duration: 2.0})
		radioState[a] = true                   
	};
}

function shirtPreview (arg) {
	var picture = {
		1: 'front', 
		2: 'back', 
		3: 'detail'
	}
	var pic = '<img src="images/shirt-' + picture[arg] + '.gif" width="510" height="365" alt="Shirt Detail" id="shirtDesign2" style="display: none;">';
	setTimeout(function() {Effect.Appear('shirtDesign2')}, 500);
	Element.update('shirtDesign', pic);
}