function initPngs() {
	if(document.getElementById('channelPng').runtimeStyle) {
		document.getElementById('channelPng').style.backgroundImage = 'none';
		document.getElementById('logoPng').style.backgroundImage = 'none';
		document.getElementById('channelDisplayPng').style.backgroundImage = 'none';
		if(document.getElementById('mediaPng')){
			document.getElementById('mediaPng').style.backgroundImage = 'none';
			document.getElementById('mediaPng').style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='/2008/CRI/img/medias/bgMedias.png',sizingMethod='scale')";
		}
		document.getElementById('channelPng').style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='/2008/CRI/img/autresepreuves_tab.png',sizingMethod='scale')";
		document.getElementById('channelDisplayPng').style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='/img/channel/bgChannel.png',sizingMethod='scale')";
		document.getElementById('logoPng').style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='/2008/CRI/img/logo.png',sizingMethod='scale')";
	}
	//getStyle("logo").visibility = "visible";
	getStyle("channelDisplayPng").visibility = "visible";
	getStyle("channelPng").visibility = "visible";
	getStyle("logoPng").visibility = "visible";
}
addEvent(window, "load", initPngs);