var timerlen = 2;
var slideAniLen = 400;

var timerID = new Array();
var startTime = new Array();
var obj = new Array();
var endHeight = new Array();
var moving = new Array();
var dir = new Array();

function slidedown(objname){
     /*    if(moving[objname])
                return;

       if(document.getElementById(objname).style.display != "none")
                return; // cannot slide down something that is already visible*/

        moving[objname] = true;
        dir[objname] = "down";
        startslide(objname);
}

function slideup(objname){
  /*      if(moving[objname])
                return;*/

  /*      if(document.getElementById(objname).style.display == "none")
                return; // cannot slide up something that is already hidden
*/
        moving[objname] = true;
        dir[objname] = "up";
        startslide(objname);
}

function startslide(objname){
        obj[objname] = document.getElementById(objname);
		
       
        startTime[objname] = (new Date()).getTime();

  /*      if(dir[objname] == "down"){
                obj[objname].style.height = "30px";
        }*/

     //   obj[objname].style.display = "block";

        timerID[objname] = setInterval('slidetick(\'' + objname + '\');',timerlen);
}

function slidetick(objname){
        var elapsed = (new Date()).getTime() - startTime[objname];

        if (elapsed > slideAniLen)
                endSlide(objname)
        else {
                var d =Math.round(elapsed / slideAniLen * (endHeight[objname]-30));
                if(dir[objname] == "up")
                        d = endHeight[objname] - d;
				
                obj[objname].style.height = d + "px";
        }

        return;
}

function endSlide(objname){
	
        clearInterval(timerID[objname]);

     if(dir[objname] == "up"){
                obj[objname].style.height = "30px";

				}
else 
{      obj[objname].style.height = endHeight[objname] + "px";
	 ref(true);
	}

        delete(moving[objname]);
        delete(timerID[objname]);
        delete(startTime[objname]);
        delete(endHeight[objname]);
        delete(obj[objname]);
        delete(dir[objname]);
		
        return;
}
function toggleSlide(objname){

  if(document.getElementById(objname).style.height == "30px"){
	  endHeight[objname] = 400;slidedown(objname);
	  $('#a_mappa').hide();
	  $('#c_mappa').show();
    // div is hidden, so let's slide down
    document.getElementById('map_cover').onclick= function() {} 
  }
  else
  {
	  endHeight[objname] = 400;
 	 document.getElementById('map_cover').onclick= function() {toggleSlide('mapi');}
	  $('#a_mappa').show();
	  $('#c_mappa').hide();	
    // div is not hidden, so slide up
	ref(false);
    slideup(objname);
  }
}