$(document).ready(function() {

    $("div.divNav a img").each(
    function(intIndex) {
        $(this).css('opacity', 0.80);
        //Set SubNav Mouseovers
        $(this).hover(
            function() { this.src = this.src.replace("_Off", "_On"); },
            function() { this.src = this.src.replace("_On", "_Off"); }
        );
    });


});