////////////////////////////////////////////////////////////////////////////
//																		  //
//	tooltip.js															  //
//																		  // 
//	Copyright (C) 2010 texSoft.it										  //
//																		  // 
//  This program is free software: you can redistribute it and/or modify  //
//  it under the terms of the GNU General Public License as published by  //
//  the Free Software Foundation, either version 3 of the License, or	  //
//  (at your option) any later version.									  //
//																		  //
//  This program is distributed in the hope that it will be useful,		  //
//  but WITHOUT ANY WARRANTY; without even the implied warranty of		  //
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the		  //
//  GNU General Public License for more details.						  //
//																		  //
//  You should have received a copy of the GNU General Public License	  //
//  along with this program.  If not, see <http://www.gnu.org/licenses/>. //
//																		  //    
////////////////////////////////////////////////////////////////////////////

/* ---------------------------------------------------------------------- */
//	Fonction qui permet d'afficher des tooltips	personnalisable			  //
/* ---------------------------------------------------------------------- */
function xstooltip_show(tooltipId, parentId, posX, posY)
{
    it = document.getElementById(tooltipId);
    
    if ((it.style.top == '' || it.style.top == 0) 
        && (it.style.left == '' || it.style.left == 0))
    {
        // need to fixate default size (MSIE problem)
        it.style.width = it.offsetWidth + 'px';
        it.style.height = it.offsetHeight + 'px';
        
        img = document.getElementById(parentId); 
    
        // if tooltip is too wide, shift left to be within parent 
        if (posX + it.offsetWidth > img.offsetWidth) posX = img.offsetWidth - it.offsetWidth;
        if (posX < 0 ) posX = 0; 
        
        x = xstooltip_findPosX(img) + posX;
        y = xstooltip_findPosY(img) + posY;
        
        it.style.top = y + 'px';
        it.style.left = x + 'px';
    }
    
    it.style.visibility = 'visible'; 
}

function xstooltip_hide(id)
{
    it = document.getElementById(id); 
    it.style.visibility = 'hidden'; 
}

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

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