if (window.attachEvent) window.attachEvent("onload", main);

function main() {
  var menus = getElementsByClass('lev1');
  for( i = 0; i < menus.length; i++ ) {
    menus[i].onmouseover = function() { 
      this.className += " cssHover";
    }
    menus[i].onmouseout=function() {
      this.className = this.className.replace(new RegExp(" cssHover\\b"), "");
    }
  }

  removeTooltips();
}

function getElementsByClass(searchClass,node,tag) {
  var classElements = new Array();
  if ( node == null )
    node = document;
  if ( tag == null )
    tag = '*';
  var els = node.getElementsByTagName(tag);
  var elsLen = els.length;
  var pattern = new RegExp("(^|\\s)"+searchClass+"(\\s|$)");
  for (i = 0, j = 0; i < elsLen; i++) {
    if ( pattern.test(els[i].className) ) {
      classElements[j] = els[i];
      j++;
    }
  }
  return classElements;
}

function removeTooltips() {
  var images = document.getElementsByTagName('img');
  for( i = 0; i < images.length; i++ ) {
    images[i].title = "";
  }
}