// JavaScript Document
function initMySelectors()   {
   var mymenu1 = document.getElementById("mymenu1");
   if (mymenu1) mymenu1.onchange = updateMenu2;
}
function updateMenu2()   {
   var mymenu2 = document.getElementById("mymenu2");
   var selval = parseInt(this.options[this.selectedIndex].value);
   if (selval > 4 && selval < 8)   {
      mymenu2.disabled = true;
   } else   {
      mymenu2.disabled = false;
   }
}
function addLoadEvent(func) {
    var oldonload = window.onload;
    if (typeof window.onload != 'function') {
        window.onload = func;
    } else {
        window.onload = function() {
            oldonload();
            func();
        }
    }
}
addLoadEvent(initMySelectors);