bu01_on = new Image();
bu01_on.src = "IMAGE/MENU01/bu01_on.gif";
bu01_off= new Image();
bu01_off.src= "IMAGE/MENU01/bu01_off.gif";

bu02_on = new Image();
bu02_on.src = "IMAGE/MENU01/bu02_on.gif";
bu02_off= new Image();
bu02_off.src= "IMAGE/MENU01/bu02_off.gif";

bu03_on = new Image();
bu03_on.src = "IMAGE/MENU01/bu03_on.gif";
bu03_off= new Image();
bu03_off.src= "IMAGE/MENU01/bu03_off.gif";

bu04_on = new Image();
bu04_on.src = "IMAGE/MENU01/bu04_on.gif";
bu04_off= new Image();
bu04_off.src= "IMAGE/MENU01/bu04_off.gif";

bu05_on = new Image();
bu05_on.src = "IMAGE/MENU01/bu05_on.gif";
bu05_off= new Image();
bu05_off.src= "IMAGE/MENU01/bu05_off.gif";

bu_sim_on = new Image();
bu_sim_on.src = "IMAGE/MENU01/bu_sim_on.gif";
bu_sim_off= new Image();
bu_sim_off.src= "IMAGE/MENU01/bu_sim_off.gif";

bu_company_on = new Image();
bu_company_on.src = "IMAGE/MENU01/bu_company_on.gif";
bu_company_off= new Image();
bu_company_off.src= "IMAGE/MENU01/bu_company_off.gif";

bu_group_on = new Image();
bu_group_on.src = "IMAGE/MENU01/bu_group_on.gif";
bu_group_off= new Image();
bu_group_off.src= "IMAGE/MENU01/bu_group_off.gif";

bu_contact_on = new Image();
bu_contact_on.src = "IMAGE/MENU01/bu_contact_on.gif";
bu_contact_off= new Image();
bu_contact_off.src= "IMAGE/MENU01/bu_contact_off.gif";


function imgRoll(imgDocID, mouseMov) {
  if ( mouseMov == "in" ) {
 document.images[imgDocID].src = eval(imgDocID + "_on.src");
  }
  if ( mouseMov == "out" ) {
 document.images[imgDocID].src = eval(imgDocID + "_off.src");
  }
}