jQuery.fn.supersleight = function(settings) {
        settings = jQuery.extend({
                imgs: true,
                backgrounds: true,
                shim: 'x.gif',
                apply_positioning: true
        }, settings);
        
        return this.each(function(){
                if (jQuery.browser.msie && parseInt(jQuery.browser.version, 10) < 7 && parseInt(jQuery.browser.version, 10) > 4) {
                        jQuery(this).find('*').andSelf().each(function(i,obj) {
                                var self = jQuery(obj);
                                // background pngs
                                if (settings.backgrounds && self.css('background-image').match(/\.png/i) !== null) {
                                        var bg = self.css('background-image');
                                        var src = bg.substring(5,bg.length-2);
                                        var mode = (self.css('background-repeat') == 'no-repeat' ? 'crop' : 'scale');
                                        var styles = {
                                                'filter': "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + src + "', sizingMethod='" + mode + "')",
                                                'background-image': 'url('+settings.shim+')'
                                        };
                                        self.css(styles);
                                };
                                // image elements
                                if (settings.imgs && self.is('img[src$=png]')){
                                        var styles = {
                                                'width': self.width() + 'px',
                                                'height': self.height() + 'px',
                                                'filter': "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + self.attr('src') + "', sizingMethod='scale')"
                                        };
                                        self.css(styles).attr('src', settings.shim);
                                };
                                // apply position to 'active' elements
                                if (settings.apply_positioning && self.is('a, input') && (self.css('position') === '' || self.css('position') == 'static')){
                                        self.css('position', 'relative');
                                };
                        });
                };
        });
};