/************************************************************************************************************
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
	
************************************************************************************************************/	

	/************************************************************************************************************
	(C) www.dhtmlgoodies.com, June 2006
	
	This is a script from www.dhtmlgoodies.com. You will find this and a lot of other scripts at our website.	
	
	Terms of use:
	You are free to use this script as long as the copyright message is kept intact. However, you may not
	redistribute, sell or repost it without our permission.
	
	Thank you!
	
	www.dhtmlgoodies.com
	Alf Magne Kalleland
	
	************************************************************************************************************/	



/* Custom variables */

/* Offset position of tooltip */
var x_offset_tooltip = 0;
var y_offset_tooltip = 10;

/* 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(externalFile,inputObj)
{
	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(inputObj);
}

function ajax_positionTooltip(inputObj)
{
	var leftPos = (ajaxTooltip_getLeftPos(inputObj) + inputObj.offsetWidth);
	var topPos = ajaxTooltip_getTopPos(inputObj);

	/*
	var rightedge=ajax_tooltip_MSIE? document.body.clientWidth-leftPos : window.innerWidth-leftPos
	var bottomedge=ajax_tooltip_MSIE? document.body.clientHeight-topPos : window.innerHeight-topPos
	*/
	var tooltipWidth = document.getElementById('ajax_tooltip_content').offsetWidth +  document.getElementById('ajax_tooltip_arrow').offsetWidth; 
	// Dropping this reposition for now because of flickering
	//var offset = tooltipWidth - rightedge; 
	//if(offset>0)leftPos = Math.max(0,leftPos - offset - 5);
	
	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;
}