images_loaded=0;
    
    function load_rollovers() {
             if (document.images) {  
                rollover = new MakeArray(22)
                rollover[0].src = "/images/mergermenu_01_off.gif"
                rollover[1].src = "/images/mergermenu_01_on.gif"
                rollover[2].src = "/images/mergermenu_02_off.gif"
                rollover[3].src = "/images/mergermenu_02_on.gif"
                rollover[4].src = "/images/mergermenu_03_off.gif"
                rollover[5].src = "/images/mergermenu_03_on.gif"
                rollover[6].src = "/images/mergermenu_04_off.gif"
                rollover[7].src = "/images/mergermenu_04_on.gif"
                rollover[8].src = "/images/mergermenu_05_off.gif"
                rollover[9].src = "/images/mergermenu_05_on.gif"
                rollover[10].src = "/images/mergermenu_05_off.gif"
                rollover[11].src = "/images/mergermenu_05_on.gif"
               rollover[12].src = "/images/mergermenu_06_off.gif"
                rollover[13].src = "/images/mergermenu_06_on.gif"
                rollover[14].src = "/images/opening_main.jpg"
                rollover[15].src = "/images/distinctivelynav.jpg"
                rollover[16].src = "/images/PlacemakingEconomicGrowthnav.jpg"
                rollover[17].src = "/images/sustainabilitynav.jpg"
                rollover[18].src = "/images/graphicdesignnav.jpg"
                rollover[19].src = "/images/masternav.jpg"
                rollover[20].src = "/images/artsnav.jpg"
                rollover[21].src = "/images/marketnav.jpg"
                                  
                images_loaded=1;
                                
             }
                
}



        function MakeArray(n) {
                this.length = n
                for (var i = 0; i< n; i++) {
                        this[i] = new Image()
                }
                return this
        }

   

        function chng_rollover(imgName,ro_Num) {
                if (document.images) {
                        document [imgName].src = rollover[ro_Num].src;
                }
        }