/************************************************************************************************************
Ajax dynamic content
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

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

var x_offset_tooltip = 5;
var y_offset_tooltip = 0;
var ajax_tooltipObj = false;
var ajax_tooltipObj_iframe = false;
var ajax_tooltip_MSIE = false;
if(navigator.userAgent.indexOf('MSIE')>=0)ajax_tooltip_MSIE=true;

var enableCache = true;
var jsCache = new Array();

var dynamicContent_ajaxObjects = new Array();

function ajax_showContent(divId,ajaxIndex,url){
	document.getElementById(divId).innerHTML = dynamicContent_ajaxObjects[ajaxIndex].response;
	if(enableCache){
		jsCache[url] = 	dynamicContent_ajaxObjects[ajaxIndex].response;
	}
	dynamicContent_ajaxObjects[ajaxIndex] = false;
}

function ajax_loadContent(divId,url){
	if(enableCache && jsCache[url]){
		document.getElementById(divId).innerHTML = jsCache[url];
		return;
	}


	var ajaxIndex = dynamicContent_ajaxObjects.length;
	document.getElementById(divId).innerHTML = 'Loading content - please wait';
	dynamicContent_ajaxObjects[ajaxIndex] = new sack();

	if(url.indexOf('?')>=0){
		dynamicContent_ajaxObjects[ajaxIndex].method='GET';
		var string = url.substring(url.indexOf('?'));
		url = url.replace(string,'');
		string = string.replace('?','');
		var items = string.split(/&/g);
		for(var no=0;no<items.length;no++){
			var tokens = items[no].split('=');
			if(tokens.length==2){
				dynamicContent_ajaxObjects[ajaxIndex].setVar(tokens[0],tokens[1]);
			}
		}
		url = url.replace(string,'');
	}

	dynamicContent_ajaxObjects[ajaxIndex].requestFile = url;
	dynamicContent_ajaxObjects[ajaxIndex].onCompletion = function(){ ajax_showContent(divId,ajaxIndex,url); };
	dynamicContent_ajaxObjects[ajaxIndex].runAJAX();


}

function ajax_showTooltip(externalFile,inputObj){
	if(!ajax_tooltipObj){
		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');
		leftDiv.className='ajax_tooltip_arrow';
		leftDiv.id = 'ajax_tooltip_arrow';
		ajax_tooltipObj.appendChild(leftDiv);

		var contentDiv = document.createElement('DIV');
		contentDiv.className = 'ajax_tooltip_content';
		ajax_tooltipObj.appendChild(contentDiv);
		contentDiv.id = 'ajax_tooltip_content';

		if(ajax_tooltip_MSIE){
			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';
		}


	}
	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 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;
}