/*
  navigation.js
  
  implements the behavior of the navigation
  
*/

// for Topnav
function showDrop(id, menu) {
  hideAll(menu);
  document.getElementById(id).style.display='block';
}

function hideAll(menu) {
  if (menu=='main') {  
    document.getElementById('dropabout').style.display='none';
    document.getElementById('droptech').style.display='none';  
/*    
    document.getElementById('dropapps').style.display='none';  
*/
    document.getElementById('dropnewsevents').style.display='none';  
  }
  if (menu=='navTershTeam') {
    document.getElementById('navTershTeamExcSub').style.display='none';
    document.getElementById('navTershTeamBrdSub').style.display='none';
    document.getElementById('navTershTeamSciAdvSub').style.display='none';
  }
  if (menu=='navTershTeamExc') {
    document.getElementById('navTershTeamBrdSub').style.display='none';
    document.getElementById('navTershTeamSciAdvSub').style.display='none';
  }
  if (menu=='navTershTeamSciAdv') {
    document.getElementById('navTershTeamExcSub').style.display='none';
    document.getElementById('navTershTeamBrdSub').style.display='none';
  }
  if (menu=='navTershTeamBrd') {
    document.getElementById('navTershTeamExcSub').style.display='none';
    document.getElementById('navTershTeamSciAdvSub').style.display='none';
  }
}

// For the dropdowns
// =====================================================================
function MM_jumpMenu(targ,selObj,restore)
/*
*/
{ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}