var level1 = new Array()
var level2 = new Array() 
var i = 1;
var k = 0;
var arr = new Array()

while (level1[i] = document.getElementById('topMenuLevel1_' + i)){
  level2[i] = document.getElementById('topMenuLevel2_' + i)
  level1[i].onclick = topMenuToggle
  i++
}

function topMenuToggle(){
  strId = this.id
  arr = strId.split("_")  
  for (j=1;j<(level1.length - 1);j++){
    level1[j].style.backgroundImage = "none"
    level2[j].style.display = "none"
  }
  this.style.backgroundImage = "url(/img/buttonGradient.png)"
  document.cookie="topMenuSelected="+arr[1]+"; path=/";
  level2[arr[1]].style.display = "inline"  
}