/************************************************************************************************************
Ajax tooltip
Copyright (C) 2006  DTHMLGoodies.com, Alf Magne Kalleland

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

This library 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
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

Dhtmlgoodies.com., hereby disclaims all copyright interest in this script
written by Alf Magne Kalleland.

Alf Magne Kalleland, 2006
Owner of DHTMLgoodies.com
	
************************************************************************************************************/	




/* Custom variables */

/* Offset position of tooltip */
var x_offset_tooltip = 5;
var y_offset_tooltip = 0;

/* Don't change anything below here */


var ajax_tooltipObj = false;
var ajax_tooltipObj_iframe = false;

var ajax_tooltip_MSIE = false;
if(navigator.userAgent.indexOf('MSIE')>=0)ajax_tooltip_MSIE=true;

function ajax_showTooltip(e,externalFile,inputObj)
{

   if(document.all)e = event;

   if(!ajax_tooltipObj)   /* Tooltip div not created yet ? */
   {
      ajax_tooltipObj = document.createElement('DIV');
      ajax_tooltipObj.style.position = 'absolute';
      ajax_tooltipObj.id = 'ajax_tooltipObj';      
      document.body.appendChild(ajax_tooltipObj);

      
      var leftDiv = document.createElement('DIV');   /* Create arrow div */
      leftDiv.className='ajax_tooltip_arrow';
      leftDiv.id = 'ajax_tooltip_arrow';
      ajax_tooltipObj.appendChild(leftDiv);
      
      var contentDiv = document.createElement('DIV'); /* Create tooltip content div */
      contentDiv.className = 'ajax_tooltip_content';
      ajax_tooltipObj.appendChild(contentDiv);
      contentDiv.id = 'ajax_tooltip_content';
      
      if(ajax_tooltip_MSIE){   /* Create iframe object for MSIE in order to make the tooltip cover select boxes */
         ajax_tooltipObj_iframe = document.createElement('<IFRAME frameborder="0">');
         ajax_tooltipObj_iframe.style.position = 'absolute';
         ajax_tooltipObj_iframe.border='0';
         ajax_tooltipObj_iframe.frameborder=0;
         ajax_tooltipObj_iframe.style.backgroundColor='#FFF';
         ajax_tooltipObj_iframe.src = 'about:blank';
         contentDiv.appendChild(ajax_tooltipObj_iframe);
         ajax_tooltipObj_iframe.style.left = '0px';
         ajax_tooltipObj_iframe.style.top = '0px';
      }

         
   }
   // Find position of tooltip
   ajax_tooltipObj.style.display='block';
   ajax_loadContent('ajax_tooltip_content',externalFile);
   if(ajax_tooltip_MSIE){
      ajax_tooltipObj_iframe.style.width = ajax_tooltipObj.clientWidth + 'px';
      ajax_tooltipObj_iframe.style.height = ajax_tooltipObj.clientHeight + 'px';
   }

   
   ajax_positionTooltip(e,inputObj);
}

function ajax_positionTooltip(e,inputObj)
{
   if(inputObj){
      var leftPos = (ajaxTooltip_getLeftPos(inputObj) + inputObj.offsetWidth);
      var topPos = ajaxTooltip_getTopPos(inputObj);
   }else{      
      var leftPos = e.clientX;
      var topPos = e.clientY;
   }
   var tooltipWidth = document.getElementById('ajax_tooltip_content').offsetWidth +  document.getElementById('ajax_tooltip_arrow').offsetWidth;
   ajax_tooltipObj.style.left = leftPos + 'px';
   ajax_tooltipObj.style.top = topPos + 'px';   
}


function ajax_hideTooltip()
{
	ajax_tooltipObj.style.display='none';
}

function ajaxTooltip_getTopPos(inputObj)
{		
  var returnValue = inputObj.offsetTop;
  while((inputObj = inputObj.offsetParent) != null){
  	if(inputObj.tagName!='HTML')returnValue += inputObj.offsetTop;
  }
  return returnValue;
}

function ajaxTooltip_getLeftPos(inputObj)
{
  var returnValue = inputObj.offsetLeft;
  while((inputObj = inputObj.offsetParent) != null){
  	if(inputObj.tagName!='HTML')returnValue += inputObj.offsetLeft;
  }
  return returnValue;
}