/*
 * Fixes PNG transparency replacing all img tags
 * with the 'src' attribute pointing to a png file 
 * with a span that uses a filtered background image.
 * 
 * This is a well-known hack for png transparency, 
 * although it does not work with tags using a
 * transparent background-image.
 */
function replaceImgTags() {
	if (Ext.isIE6) {
		
		for(var i = 0; i < document.images.length; i++) {
			
			var img = document.images[i];
			
			var imgName = img.src.toUpperCase();
			
			if (imgName.substring(imgName.length - 3, imgName.length) == "PNG") {
				
				var imgID = (img.id) ? "id='" + img.id + "' " : "";
				var imgClass = (img.className) ? "class='" + img.className + "' " : "";
				var imgTitle = (img.title) ? "title='" + img.title + "' " : "title='" + img.alt + "' ";
				var imgStyle = "display:inline-block;" + img.style.cssText;
				if (img.align == "left") {
					imgStyle = "float:left;" + imgStyle;
				}
				if (img.align == "right") {
					imgStyle = "float:right;" + imgStyle;
				}
				if (img.parentElement.href) {
					imgStyle = "cursor:pointer;" + imgStyle;
				}
				
				var strNewHTML = "<span " + imgID + imgClass + imgTitle
				+ " style=\"" + "width:" + img.width + "px; height:" + img.height + "px;" + imgStyle + ";"
				+ "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
				+ "(src=\'" + img.src + "\', sizingMethod='scale');\"></span>";
				
				img.outerHTML = strNewHTML;
				
				i = i - 1;
			}
		}	
	}
}

/*
 * Fixes a BoxModel-related problem in
 * paints galleries.
 */
function fixGalleryPaintsWidth() {
	
	if (Ext.isIE6) {
	
		var paints = Ext.select('.paint', false, 'paints-container');
		
		paints.each(function(el, scope, index){
			var paintImg = el.first('img');
			el.setWidth(paintImg.getWidth());
		});
		
	}
}