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

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

function hideAll(menu) {
  if (menu=='main') {  
    document.getElementById('drophome').style.display='none';
    document.getElementById('droptech').style.display='none';  
    document.getElementById('dropapps').style.display='none';  
	document.getElementById('dropcomm').style.display='none'; 
    document.getElementById('dropnewsevents').style.display='none';  
	document.getElementById('dropdiscussion').style.display='none';  	
	document.getElementById('dropmembership').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';
  }
}

function setColor(id){
        document.getElementById(id).style.color = "orange";
}