var DDSPEED = 10;
var DDTIMER = 15;

/**************************DROPDOWN MENU ***************************/

// main function to handle the mouse events //
function ddMenu(id,d){
  var h = document.getElementById(id + '-ddheader');
  var c = document.getElementById(id + '-ddcontent');
  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';
    }
    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');
  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));
	if(currh < 10){
		c.style.backgroundColor = '';
		c.style.border = '';
	}else{
		c.style.backgroundColor = '#EEEEEE';
		c.style.border = '1px solid #F3F3F3';
	}
  }else{
    dist = (Math.round(currh / DDSPEED));
	currh-=4;
  }
  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);
  }
}

/**************************EXPANDING/COLLAPSING DIVS ***************************/

// main function to handle the mouse events //
function newddMenu(header, content){
  var h = document.getElementById(header);
  var c = document.getElementById(content);
   
  	if (document.getElementById(content).style.display == "none"){
		var d = 1;	 
		c.style.display = 'block';
	}else{
		var d = -1;
	}
  clearInterval(c.timer);
  if(d == 1){
	  //alert("c.offsetHeight.."+c.offsetHeight);
    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';
    }
    c.timer = setInterval(function(){newddSlide(c,1)},DDTIMER);
  }else{
    h.timer = setTimeout(function(){newddCollapse(c)},50);
  }
}

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

// cancel the collapse if a user rolls over the dropdown //
function newcancelHide(header, content){
  var h = document.getElementById(header);
  var c = document.getElementById(content);
  clearTimeout(h.timer);
  clearInterval(c.timer);
  if(c.offsetHeight < c.maxh){
    c.timer = setInterval(function(){newddSlide(c,1)},DDTIMER);
  }
}

// incrementally expand/contract the dropdown and change the opacity //
function newddSlide(c,d){
	//alert('1');
	var xx=1;
  var currh = c.offsetHeight;
  var dist;
  if(d == 1){
    dist = (Math.round((c.maxh - currh) / DDSPEED));
	if(currh < 30){
		//c.style.border = '1px solid #CCCCCC';
	}
  }else{
    dist = (Math.round(currh / DDSPEED));
	currh-=4;
  }
  if(dist <= 1 && d == 1){
    dist = 1;
  }
  //alert('1 '+c.style.height+' --- dist '+dist+' --- currh '+currh+' --- d '+d);
  if(d == -1 && currh < 10){
		c.style.height = 0+"px";  
  }else{
	  	c.style.height = (currh + (dist * d)) + 'px';
  }
  
  
  //alert('2 '+c.style.height+' --- dist '+dist+' --- currh '+currh+' --- d '+d);
  if((currh + (dist * d)) < 1){
		c.style.display = 'none';	
	}
  c.style.opacity = currh / c.maxh;
  c.style.filter = 'alpha(opacity=' + (currh * 100 / c.maxh) + ')';
  //alert("currh "+currh+" -- d "+d+" -- c.maxh "+c.maxh);
  if(((currh < 5 && d != 1) || (currh > (c.maxh - 2) && d == 1))){
	  if(xx == 1){
			//alert("currh "+currh+" -- d "+d+" -- c.maxh "+c.maxh);
			clearInterval(c.timer);
		xx++;	
	  }
  }
}