/**
* enable semi-transparent PNG graphics for IE6 and IE5.5
*
* @author: Andreas Demmer <mail@andreas-demmer.de>
*/

/*
* detected browser
*/
var browser;

/*
* detected browser version
*/
var browserVersion;

/*
* is detected browser an Internet Exploder
*/
var isIE;

/*
* detect browser and version
*/
browserDetection = function () {
	browser = navigator.userAgent.toLowerCase();
	browserVersion = parseFloat( browser.substring( browser.indexOf('msie ') + 5 ) );
	isIE = ( (browser.indexOf("msie") != -1) && (browser.indexOf("opera") == -1) && (browser.indexOf("webtv") == -1));
}

/*
* document ready function
*/
pngfix = function() {
	if(!isIE){return}
	if(browserVersion >= 7) {return}
	var canBeFixed = (browserVersion >= 5.5);
	var BackgroundImage = $(this).css('background-image');

	if(BackgroundImage != 'none'){
		var isBackgroundImage = true;

		PngUrl = BackgroundImage.replace('url\(\'', '');
		PngUrl = PngUrl.replace('url\("', '');
		PngUrl = PngUrl.replace('\')', '');
		PngUrl = PngUrl.replace('")', '');
	}else{
		var isBackgroundImage = false;

		PngUrl = $(this).attr('src');
	}

	if(canBeFixed){
		$(this).css('filter', "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+PngUrl+"', sizingMethod='scale')");

		if (!isBackgroundImage) {
			$(this).attr('src', "img/blank.gif");
		} else {
			$(this).css('background-image', 'none');
		}
	}
}

function pngfix1(elem) {
	if(!isIE){return}
	if(browserVersion >= 7) {return}
	var canBeFixed = (browserVersion >= 5.5);
	var BackgroundImage = $("#"+element).css('background-image');

	if(BackgroundImage != 'none'){
		var isBackgroundImage = true;

		PngUrl = BackgroundImage.replace('url\(\'', '');
		PngUrl = PngUrl.replace('url\("', '');
		PngUrl = PngUrl.replace('\')', '');
		PngUrl = PngUrl.replace('")', '');
	}else{
		var isBackgroundImage = false;

		PngUrl = $("#"+element).attr('src');
	}

	if(canBeFixed){
		$("#"+element).css('filter', "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+PngUrl+"', sizingMethod='scale')");

		if (!isBackgroundImage) {
			$("#"+element).attr('src', "img/blank.gif");
		} else {
			$("#"+element).css('background-image', 'none');
		}
	}
}

/*
* processes PNG files with Microsoft filter, only on Internet Explorer 6
*/
fixIE6alphaTransparency = function () {
	if (isIE && browserVersion == 6) {
		$('.fixIe').each(pngfix);
	}
}