//browser detect
var browserName, IE, nextNum, goNum,e,f,g,h
var codeVis,codeShow,who,codeHide,curArray,tempObj

var currMenu, lastMenu
var MillisecondsBeforeClose = 500;

browserName = navigator.appName
if (browserName.indexOf("Netscape") >= 0) { IE = 0 }
if (browserName.indexOf("Microsoft") >= 0) { IE = 1 }
if (browserName.indexOf("MSIE") >= 0) { IE = 1 }
if (IE == 1) { codeVis=".style.visibility"; codeShow = "visible"; codeHide = "hidden" }
if (IE == 0) { codeVis=".visibility"; codeShow = "show"; codeHide = "hide" }

function doRoll(who, where, what) {
who.src = where;
parent.self.status = what;
}

function rollZero(who, which) {
  if (IE == 1) { 
    if (which=="on") {who.style.visibility = "visible"}
    if (which=="off"){who.style.visibility = "hidden"}
  }
  if (IE == 0) { 
    if (which=="on") {who.visibility = "show"}
    if (which=="off"){who.visibility = "hide"}
  }
}

function preloadImages() {
  var imgFiles = preloadImages.arguments;
  var preloadArray = new Array();
  for (var i=0; i<imgFiles.length; i++) {
    preloadArray[i] = new Image;
    preloadArray[i].src = imgFiles[i];
  }
}

function toggle(arrayName,curLevel,whoTrigger,Depth) {
  if (IE == 1) {  
    if (whoTrigger.style.visibility == "hidden") { 
      clearEm(arrayName,curLevel,Depth);
      whoTrigger.style.visibility = "visible";
      killAll(arrayName);
    } else {    
      clearEm(arrayName,curLevel,Depth);
    }
  }
  if (IE == 0) {  
    if (whoTrigger.visibility == "hide") { 
      clearEm(arrayName,curLevel,Depth);
      whoTrigger.visibility = "show";
      killAll(arrayName);
    } else {    
      clearEm(arrayName,curLevel,Depth);
    }
  }
}

function killAll(arrayName) {
  if(arrayName != "PMT") { clearEm('PMT',0,4)}
  if(arrayName != "SP") { clearEm('SP',0,1)}
  if(arrayName != "SFM") { clearEm('SFM',0,1)}
  if(arrayName != "TMR") { clearEm('TMR',0,2)}
  if(arrayName != "MCC") { clearEm('MCC',0,2)}
  if(arrayName != "DCS") { clearEm('DCS',0,1)}
}

function clearEm(arrayName,curLevel,Depth) {
  for (e=0; e<Depth; e++) {  
    if (curLevel==e) {
      curArray = arrayName+curLevel;
      for (f=0; f<(eval(curArray+".length")); f++) {
        if (IE==0) {
          tempObj = eval(curArray+"["+f+"]");
          eval("document."+tempObj+codeVis+" = '"+codeHide+"';");
        }
        if (IE==1) {
          tempObj = eval(curArray+"["+f+"]");
          eval("document.all.item('"+tempObj+"')"+codeVis+" = '"+codeHide+"';");
        }
      }
      curLevel = curLevel+1;
      if (curLevel != Depth) {curArray = eval(arrayName+curLevel)}
    }
  }
}

function enterMenu(thisMenu) {
  currMenu = thisMenu;
}

function leaveMenu(thisMenu) {
  setTimeout("clearMenu('" + thisMenu + "')", MillisecondsBeforeClose);  
  currMenu = '';
}

function clearMenu(whichmenu) {
  if (currMenu!=whichmenu) {
    killAll();
  }
}