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 tmp_function=function (self,mode){
						if(self.attr('src').indexOf('http')==-1  && self.attr('src').indexOf(this_page_base_herf)==-1){
							self.attr('src',(this_page_base_herf + self.attr('src')));
						}
						var styles = {
							'width': self.width() + 'px',
							'height': self.height() + 'px',
							'filter': "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + self.attr('src') + "', sizingMethod='scale')"
						};
						if(mode){
							if(mode=='load'){
								self.unbind('load');
							}
						}
						self.css(styles).attr('src', settings.shim);
					}
					found=false;
					var rs=this.readyState;
					if(this.complete==true){found=true;}
					else if(rs=='complete'){found=true;}//IE!
					if(found==true){
						tmp_function(self,'force');
					}else{
						self.load(function(){tmp_function(self,'load');});
					}
				};
				// apply position to 'active' elements
				if (settings.apply_positioning && self.is('a, input') && (self.css('position') === '' || self.css('position') == 'static')){
					self.css('position', 'relative');
				};
			});
		};
	});
};