var background;
var currentPosition = 0;
var backgroundWidth;

(function($){

	$.fn.backgroundScroll = function(options) {
	    background = $(this);
	    backgroundSize = options.backgroundImageWidth;
	    var init = setInterval("bgScroll()", options.scrollSpeed);
	};
	
})(jQuery);

function bgScroll(){
    if(backgroundSize <= currentPosition){
        currentPosition = 0;
    }
    currentPosition++;
    background.css("background-position",currentPosition+"px 0");
}