var DDSPEED = 10;
var DDTIMER = 10;

// 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)},40);
  }
}

// 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);
  }
}
function mmLoadMenus(){
	checkCookie();
	}
	/* checkCookie() getCookie & setCookie functions are created for Tracking the lead from Manoj Tiwari on 11 Aug 2010 */
	function checkCookie()
		{
		username=getCookie('24SevTrc');
		if (username!=null && username!="")
		  {
				
		  }
		else
		  {
		  username=document.referrer;
		 
			setCookie('24SevTrc',username,30);
			
		  }
		}
		
		function getCookie(c_name)
		{
		if (document.cookie.length>0)
		  {
		  c_start=document.cookie.indexOf(c_name + "=");
		  if (c_start!=-1)
			{
			c_start=c_start + c_name.length+1;
			c_end=document.cookie.indexOf(";",c_start);
			if (c_end==-1) c_end=document.cookie.length;
			return unescape(document.cookie.substring(c_start,c_end));
			}
		  }
		return "";
		}
		function setCookie(c_name,value,expiredays)
		{
		var exdate=new Date();
		//exdate.setDate(exdate.getDate()+expiredays);
			
			exdate.setTime(exdate.getTime()+(expiredays*60*1000));
			document.cookie=c_name+ "=" +escape(value)+
			((expiredays==null) ? "" : ";expires="+exdate.toUTCString());
			
		
		}
		/*
		function setCookie(c_name,value,expiredays)
		{
		var exdate=new Date();
		exdate.setDate(exdate.getDate()+expiredays);
		document.cookie=c_name+ "=" +escape(value)+
		((expiredays==null) ? "" : ";expires="+exdate.toUTCString());
		}
		*/

// 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);
  }
}