home_on = new Image();
home_on.src = "img/home_on.png";
home_off = new Image();
home_off.src = "img/home_off.png";

function _msie_replace_png_imgs() {
	var i, elements;

	elements = document.getElementsByTagName( "img" );
	for ( i = 0; i < elements.length; i++ ) {
		var img = elements[i];
		if ( img.src.toLowerCase().search(/\.png$/ ) < 0 ) continue;

		img.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + img.src	+ "', sizingMethod='image')";
		img.src = "img/spacer.gif";
	}
}

if ( window.attachEvent && navigator.appName == "Microsoft Internet Explorer" ) window.attachEvent ( "onload", _msie_replace_png_imgs );