(function($) {

$.ifixpng = function(customPixel) {
$.ifixpng.pixel = customPixel;
};
$.ifixpng.getPixel = function() {
return $.ifixpng.pixel || 'ressources/blank.gif';
};
var hack = {
ltie7 : $.browser.msie && $.browser.version < 7,
filter : function(src) {
return "progid:DXImageTransform.Microsoft.AlphaImageLoader(enabled=true,sizingMethod=crop,src='"+src+"')";
}
};

$.fn.ifixpng = hack.ltie7 ? function() {
return this.each(function() {
var $$ = $(this);
var base = $('base').attr('href'); 
if ($$.is('img') || $$.is('input')) { 
if ($$.attr('src')) {
if ($$.attr('src').match(/.*\.png([?].*)?$/i)) { 

var source = (base && $$.attr('src').substring(0,1)!='/') ? base + $$.attr('src') : $$.attr('src');

$$.css({filter:hack.filter(source), width:$$.width(), height:$$.height()})
.attr({src:$.ifixpng.getPixel()})
.positionFix();
}
}
} else { 
var image = $$.css('backgroundImage');
if (image.match(/^url\(["']?(.*\.png([?].*)?)["']?\)$/i)) {
image = RegExp.$1;
$$.css({backgroundImage:'none', filter:hack.filter(image)})
.children().children().positionFix();
}
}
});
} : function() { return this; };

$.fn.iunfixpng = hack.ltie7 ? function() {
return this.each(function() {
var $$ = $(this);
var src = $$.css('filter');
if (src.match(/src=["']?(.*\.png([?].*)?)["']?/i)) { 
src = RegExp.$1;
if ($$.is('img') || $$.is('input')) {
$$.attr({src:src}).css({filter:''});
} else {
$$.css({filter:'', background:'url('+src+')'});
}
}
});
} : function() { return this; };

$.fn.positionFix = function() {
return this.each(function() {
var $$ = $(this);
var position = $$.css('position');
if (position != 'absolute' && position != 'relative') {
$$.css({position:'relative'});
}
});
};
})(jQuery);