var ie = (document.all) ? true : false;
var nX = 120;
var nY = 0;

function findPosX(obj)
  {
    var curleft = 0;
    if(obj.offsetParent)
        while(1)
        {
          curleft += obj.offsetLeft;
          if(!obj.offsetParent)
            break;
          obj = obj.offsetParent;
        }
    else if(obj.x)
        curleft += obj.x;
    return curleft;
  }

function findPosY(obj)
  {
    var curtop = 0;
    if(obj.offsetParent)
        while(1)
        {
          curtop += obj.offsetTop;
          if(!obj.offsetParent)
            break;
          obj = obj.offsetParent;
        }
    else if(obj.y)
        curtop += obj.y;
    return curtop;
  }

function showMenu(id,n){
	divs = document.getElementsByTagName('div');
	cB = String.fromCharCode(98+n);
	for (i=0;i<divs.length;i++){
        if (divs[i].id.substring(0,1)==cB){
        	divs[i].style.display = "none";
        }
	}
	if (document.getElementById('a'+id)) {
	  obj = document.getElementById('a'+id);
	  vLeft = findPosX(obj);
	  vTop = findPosY(obj);
	  if (obj2 = document.getElementById(cB+id)){
	  	obj2.style.display = "block";
		if (n>0) {
		  	vLeft = vLeft+obj2.offsetWidth-nY;
		  	vTop  = vTop-nY;
		}
	  	obj2.style.left = vLeft+nX+'px';
	  	obj2.style.top = vTop+nY+'px';
	  }
    }
}


function hideMenu(n){
	divs = document.getElementsByTagName('div');
	for (i=0;i<divs.length;i++){
		for (j=99;j<99+n;j++){
			cB = String.fromCharCode(j);
        	if (divs[i].id.substring(0,1)==cB){
	        	divs[i].style.display = "none";
        	}
		}
	}
 nX = 0;
 nY = 26;

}