if (document.images) {

 img21on = new Image();

 img21on.src = "images/sidenav_r1_c1_f2.jpg";

 img21off = new Image();

 img21off.src = "images/sidenav_r1_c1.jpg";



 img22on = new Image();

 img22on.src = "images/sidenav_r2_c1_f2.jpg";

 img22off = new Image();

 img22off.src = "images/sidenav_r2_c1.jpg";



 img23on = new Image();

 img23on.src = "images/sidenav_r3_c1_f2.jpg";

 img23off = new Image();

 img23off.src = "images/sidenav_r3_c1.jpg";



 img24on = new Image();

 img24on.src = "images/sidenav_r4_c1_f2.jpg";

 img24off = new Image();

 img24off.src = "images/sidenav_r4_c1.jpg";



 img25on = new Image();

 img25on.src = "images/sidenav_r5_c1_f2.jpg";

 img25off = new Image();

 img25off.src = "images/sidenav_r5_c1.jpg";



 img26on = new Image();

 img26on.src = "images/sidenav_r6_c1_f2.jpg";

 img26off = new Image();

 img26off.src = "images/sidenav_r6_c1.jpg";



 img27on = new Image();

 img27on.src = "images/sidenav_r7_c1_f2.jpg";

 img27off = new Image();

 img27off.src = "images/sidenav_r7_c1.jpg"; img28on = new Image();
 img28on.src = "images/sidenav_dressage_f2.jpg";
 img28off = new Image();
 img28off.src = "images/sidenav_dressage.jpg";



 img29on = new Image();

 img29on.src = "images/sidenav_r9_c1_f2.jpg";

 img29off = new Image();

 img29off.src = "images/sidenav_r9_c1.jpg";



 img30on = new Image();

 img30on.src = "images/sidenav_r10_c1_f2.jpg";

 img30off = new Image();

 img30off.src = "images/sidenav_r10_c1.jpg";



 img31on = new Image();

 img31on.src = "images/sidenav_r11_c1_f2.jpg";

 img31off = new Image();

 img31off.src = "images/sidenav_r11_c1.jpg";



 img32on = new Image();

 img32on.src = "images/sidenav_r12_c1_f2.jpg";

 img32off = new Image();

 img32off.src = "images/sidenav_r12_c1.jpg";

 
 img33on = new Image();
 img33on.src = "images/btn_communityservice_over.jpg";
 img33off = new Image();
 img33off.src = "images/btn_communityservice.jpg";


}



function imgOn(imgName) {

 if (document.images) {

  document[imgName].src = eval(imgName + "on.src");

 }

}



function imgOff(imgName) {

 if (document.images) {

  document[imgName].src = eval(imgName + "off.src");

 }

}