function onMenu(index)
{
    td = document.getElementById('tdMainMenu' + index);
    td.style.color      = '#FFFFFF';
}

function offMenu(index)
{
    td = document.getElementById('tdMainMenu' + index);
    td.style.color      = '#000000';
}

function showDrop(i)
{
    dropMenu = document.getElementById('divDropMenu' + i);
    dropMenu.style.display = 'block'
}

function hideDrop(i)
{
    dropMenu = document.getElementById('divDropMenu' + i);
    dropMenu.style.display = 'none'
}

function e(s) 
  {
    rex=true;
    if (window.RegExp) 
      {
        st="a";ex=new RegExp(st);
        if (st.match(ex)) 
          {
            r1=new RegExp("(@.*@)|(\\.\\.)|(@\\.)|(^\\.)");
            r2=new RegExp("^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$");
            b=(!r1.test(s)&&r2.test(s));
          }
        else
          {
            rex=false;
          }
      }
    else
      {
        rex=false;
      }
    if(!rex) b=(s.indexOf("@")>0&&s.indexOf(".")>0&&s!=""&&s!="??????? E-mail");
      return (b);
}