function dropdown(mySel){
 var myWin, myVal;
 myVal = mySel.options[mySel.selectedIndex].value;
 if(myVal){
  if (myVal.indexOf('http') != -1) myWin = window.open();
  else if(mySel.form.target)myWin = parent[mySel.form.target];
  else myWin = window;
  if (! myWin) return true;
  myWin.location = myVal;
 }
 return false;
}