var DDSPEED = 6;
var DDTIMER = 20;

// main function to handle the mouse events //
function ddMenu(id,d){
  var h = document.getElementById(id + '-ddheader');
  var c = document.getElementById(id + '-ddcontent');
  var lnk=document.getElementById(id+'-link');
  clearInterval(c.timer);
  
  if(d == 1){
    clearTimeout(h.timer);
    if(c.maxh && c.maxh <= c.offsetHeight){return}
    else if(!c.maxh){
      c.style.display = 'block';
      c.style.height = 'auto';
      c.maxh = c.offsetHeight;
      c.style.height = '0px';
//	lnk.style.background='#808080'; //
	lnk.style.background='#2B547E';
    }
    c.timer = setInterval(function(){ddSlide(c,1)},DDTIMER);
  }else{

  h.timer = setTimeout(function(){ddCollapse(c)},50);
  }
}

// collapse the menu //
function ddCollapse(c){
  c.timer = setInterval(function(){ddSlide(c,-1)},DDTIMER);
}

// cancel the collapse if a user rolls over the dropdown //
function cancelHide(id){
  var h = document.getElementById(id + '-ddheader');
  var c = document.getElementById(id + '-ddcontent');
  var lnk=document.getElementById(id+'-link');
//  lnk.style.background='#808080'; //
  lnk.style.background='#2B547E';
  lnk.style.color='#ffffff';
  clearTimeout(h.timer);
  clearInterval(c.timer);
  if(c.offsetHeight < c.maxh){
    c.timer = setInterval(function(){ddSlide(c,1)},DDTIMER);
  }
}

// incrementally expand/contract the dropdown and change the opacity //
function ddSlide(c,d){
  var currh = c.offsetHeight;
  var dist;
  if(d == 1){
    dist = (Math.round((c.maxh - currh) / DDSPEED));
  }else{
    dist = (Math.round(currh / DDSPEED));
  }
  if(dist <= 1 && d == 1){
    dist = 1;
  }
  c.style.height = currh + (dist * d) + 'px';
  c.style.opacity = currh / c.maxh;
  c.style.filter = 'alpha(opacity=' + (currh * 100 / c.maxh) + ')';
  if((currh < 2 && d != 1) || (currh > (c.maxh - 2) && d == 1)){
    clearInterval(c.timer);
  }
}

// to set the menu
function setmen(){

}

//to reset the menu
function resetme(){
  var lnk1=document.getElementById('one-link');
  var lnk2=document.getElementById('two-link');
  var lnk3=document.getElementById('three-link');
  var lnk4=document.getElementById('four-link');
  var lnk5=document.getElementById('five-link');
  var lnk6=document.getElementById('six-link');
  var lnk7=document.getElementById('seven-link');
  var lnk8=document.getElementById('eight-link');
  var lnk9=document.getElementById('nine-link');
  var lnk10=document.getElementById('ten-link');
  var lnk11=document.getElementById('eleven-link');

  lnk1.style.background='#357EC7';
  lnk2.style.background='#357EC7';
  lnk3.style.background='#357EC7';
  lnk4.style.background='#357EC7';
  lnk5.style.background='#357EC7';
  lnk6.style.background='#357EC7';
  lnk7.style.background='#357EC7';
  lnk8.style.background='#357EC7';
  lnk9.style.background='#357EC7';
  lnk10.style.background='#357EC7';
  lnk11.style.background='#357EC7';
//  lnk10.style.background='#dcdcdc'; //

  lnk1.style.color='#FFFFFF';
  lnk2.style.color='#FFFFFF';
  lnk3.style.color='#FFFFFF';
  lnk4.style.color='#FFFFFF';
  lnk5.style.color='#FFFFFF';
  lnk6.style.color='#FFFFFF';
  lnk7.style.color='#FFFFFF';
  lnk8.style.color='#FFFFFF';
  lnk9.style.color='#FFFFFF';
  lnk10.style.color='#FFFFFF';
  lnk11.style.color='#FFFFFF';
}