(function($j){
	$j.positionFixed = function(el){
		$j(el).each(function(){
        	new fixed(this)
		})
		return el;					
	}
	$j.fn.positionFixed = function(){
		return $j.positionFixed(this)
	}
	var fixed = $j.positionFixed.impl = function(el){
		this.target = $j(el).css('position','fixed')
		if(!this.ie6)return;
		this.bindEvent();
	}
	$j.extend(fixed.prototype,{
		ie6 : $.browser.msie && $.browser.version < 7.0,
		bindEvent : function(){
			var target=this.target;
			target
			.css('position','absolute')
            .basePos = {
                top: parseInt(target.css('top')) || 0,
                right: parseInt(target.css('right')) || 0
            }
            target.parents().each(function(){
                var o = $j(this);
                if (o.css('position') == 'relative') 
                    o.after(target)
            })
			$j(window).scroll(this.scrollEvent());
		},
		scrollEvent : function(){
			var target=this.target;
			return function(){
                target.css({
                    top: $j(document).scrollTop() + target.basePos.top,
                    right: $j(document).scrollLeft() + target.basePos.right
                })
			}
		}
	})
})(jQuery)