menu1_1 = new Image();
menu2_1 = new Image();
menu3_1 = new Image();
menu4_1 = new Image();
menu5_1 = new Image();
menu6_1 = new Image();
menu7_1 = new Image();
menu1_2 = new Image();
menu2_2 = new Image();
menu3_2 = new Image();
menu4_2 = new Image();
menu5_2 = new Image();
menu6_2 = new Image();
menu7_2 = new Image();

menu1_1.src="images/menu1_1.gif";
menu2_1.src="images/menu2_1.gif";
menu3_1.src="images/menu3_1.gif";
menu4_1.src="images/menu4_1.gif";
menu5_1.src="images/menu5_1.gif";
menu6_1.src="images/menu6_1.gif";
menu7_1.src="images/menu7_1.gif";
menu1_2.src="images/menu1_2.gif";
menu2_2.src="images/menu2_2.gif";
menu3_2.src="images/menu3_2.gif";
menu4_2.src="images/menu4_2.gif";
menu5_2.src="images/menu5_2.gif";
menu6_2.src="images/menu6_2.gif";
menu7_2.src="images/menu7_2.gif";

lname = new Array();
lname[0] = "sub1";
lname[1] = "sub2";
lname[2] = "sub3";
lname[3] = "sub4";
lname[4] = "sub5";
lname[5] = "sub6";
lname[6] = "sub7";

function change_img1(name,img,id) {

  iname = id;
  if(document.images) { document.images[name].src = eval(img + ".src");}

  for ( i = 0; i < 7; i++) {
    name1 = lname[i];
    if (document.layers) {
        document.layers[name1].visibility = "hide"; }
    else {
       document.all[name1].style.visibility = "hidden"; }
  }
  
  if (document.layers) {
      document.layers[iname].visibility = "show"; }
  else {
      document.all[iname].style.visibility = "visible"; }

}

function change_img2(name,img) {

  if(document.images) { document.images[name].src = eval(img + ".src");}

}