var curBio = 1;
var arVersion = navigator.appVersion.split("MSIE");
var version = parseFloat(arVersion[1]);
function changeBio(selBio){
	//alert(selBio);
	if(curBio != selBio){
		if ((version >= 5.5) && (document.body.filters) && (version < 7)) {
		document.getElementById('bioPicture').style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src=\'" + "bio"+selBio+".png" + "\', sizingMethod='image');";
		}else{
		document.images.bioImage.src = "bio"+selBio+".png";
		}
		document.getElementById('bt'+curBio).style.display = "none";
		document.getElementById('bt'+selBio).style.display = "block";
		document.getElementById('bd'+curBio).style.display = "none";
		document.getElementById('bd'+selBio).style.display = "block";
		curBio = selBio;
	}
}