jQuery(document).ready(function() {


jQuery(".menuoverstate").each(function(i) {

        preload_image = new Image();
        preload_image.src = this.src.replace(".jpg", "_o.jpg");
        preload_image_s = new Image();
        preload_image_s.src = this.src.replace(".jpg", "_s.jpg");

        jQuery(this).hover(
            function() {
                if (this.src.indexOf("_o.jpg") == -1 && this.src.indexOf("_s.jpg") == -1) {
                    this.src = this.src.replace(".jpg", "_o.jpg");
                }

            },

            function() {
                if (this.src.indexOf("_s.jpg") == -1)
                    this.src = this.src.replace("_o.jpg", ".jpg");

            });

    }
        );
});

jQuery(document).ready(function() {
    jQuery(".menuoverstate").each(function(i) {

        preload_image = new Image();
        preload_image.src = this.src.replace(".gif", "_o.gif");

        jQuery(this).hover(
            function() {
                if (this.src.indexOf("_o.gif") == -1) {
                    this.src = this.src.replace(".gif", "_o.gif");
                }

            },

            function() {
            
                if (this.src.indexOf("_s.gif") == -1)
                {
                    this.src = this.src.replace("_o.gif", ".gif");
                }

            });

    }
        );
});