browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion);
if(navigator.appVersion.charAt(0)>=3) version = "n3";
else version = "n2";
if (version == "n3") { 

mm01off  = new Image( 69, 15); mm01off.src  = "./images/bt_01_off.gif";
mm01on   = new Image( 69, 15); mm01on.src   = "./images/bt_01_on.gif";
mm02off  = new Image( 53, 15); mm02off.src  = "./images/bt_02_off.gif";
mm02on   = new Image( 53, 15); mm02on.src   = "./images/bt_02_on.gif";
mm03off  = new Image( 46, 15); mm03off.src  = "./images/bt_03_off.gif";
mm03on   = new Image( 46, 15); mm03on.src   = "./images/bt_03_on.gif";

mm11off  = new Image( 96, 16); mm11off.src  = "./images/bt_11_off.gif";
mm11on   = new Image( 96, 16); mm11on.src   = "./images/bt_11_on.gif";
mm12off  = new Image(104, 16); mm12off.src  = "./images/bt_12_off.gif";
mm12on   = new Image(104, 16); mm12on.src   = "./images/bt_12_on.gif";
mm13off  = new Image( 92, 16); mm13off.src  = "./images/bt_13_off.gif";
mm13on   = new Image( 92, 16); mm13on.src   = "./images/bt_13_on.gif";
mm14off  = new Image(114, 16); mm14off.src  = "./images/bt_14_off.gif";
mm14on   = new Image(114, 16); mm14on.src   = "./images/bt_14_on.gif";

mm21off  = new Image( 87, 18); mm21off.src  = "./images/bt_21_off.gif";
mm21on   = new Image( 87, 18); mm21on.src   = "./images/bt_21_on.gif";
mm22off  = new Image( 87, 18); mm22off.src  = "./images/bt_22_off.gif";
mm22on   = new Image( 87, 18); mm22on.src   = "./images/bt_22_on.gif";
mm23off  = new Image( 87, 18); mm23off.src  = "./images/bt_23_off.gif";
mm23on   = new Image( 87, 18); mm23on.src   = "./images/bt_23_on.gif";
mm24off  = new Image( 87, 18); mm24off.src  = "./images/bt_24_off.gif";
mm24on   = new Image( 87, 18); mm24on.src   = "./images/bt_24_on.gif";
mm25off  = new Image( 87, 18); mm25off.src  = "./images/bt_25_off.gif";
mm25on   = new Image( 87, 18); mm25on.src   = "./images/bt_25_on.gif";
mm26off  = new Image( 85, 18); mm26off.src  = "./images/bt_26_off.gif";
mm26on   = new Image( 85, 18); mm26on.src   = "./images/bt_26_on.gif";
mm27off  = new Image(105, 16); mm27off.src  = "./images/bt_27_off.gif";
mm27on   = new Image(105, 16); mm27on.src   = "./images/bt_27_on.gif";


mm51off  = new Image(160, 18); mm51off.src  = "./images/menu-51.gif";
mm51on   = new Image(160, 18); mm51on.src   = "./images/menu-on51.gif";
mm52off  = new Image(160, 18); mm52off.src  = "./images/menu-52.gif";
mm52on   = new Image(160, 18); mm52on.src   = "./images/menu-on52.gif";
mm53off  = new Image(160, 18); mm53off.src  = "./images/menu-53.gif";
mm53on   = new Image(160, 18); mm53on.src   = "./images/menu-on53.gif";
mm54off  = new Image(160, 18); mm54off.src  = "./images/menu-54.gif";
mm54on   = new Image(160, 18); mm54on.src   = "./images/menu-on54.gif";
mm56off  = new Image(160, 18); mm56off.src  = "./images/menu-56.gif";
mm56on   = new Image(160, 18); mm56on.src   = "./images/menu-on56.gif";

}

function img_on(imgName) {
if (version == "n3") { imgOn = eval(imgName + "on.src");
document [imgName].src = imgOn; } }

function img_of(imgName) {
if (version == "n3") { imgOff = eval(imgName + "off.src");
document [imgName].src = imgOff; } }