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

var dynamicContent_ajaxObjects = new Array();
function __getBrowserSize()
	{
    	var bodyWidth = document.documentElement.clientWidth;
    	var bodyHeight = document.documentElement.clientHeight;
    	
		var bodyWidth, bodyHeight; 
		if (self.innerHeight){ // all except Explorer 
		 
		   bodyWidth = self.innerWidth; 
		   bodyHeight = self.innerHeight; 
		}  else if (document.documentElement && document.documentElement.clientHeight) {
		   // Explorer 6 Strict Mode 		 
		   bodyWidth = document.documentElement.clientWidth; 
		   bodyHeight = document.documentElement.clientHeight; 
		} else if (document.body) {// other Explorers 		 
		   bodyWidth = document.body.clientWidth; 
		   bodyHeight = document.body.clientHeight; 
		} 
		return [bodyWidth,bodyHeight];
		
	}
function ajax_showContent(divId,ajaxIndex,url)
{
	var targetObj = document.getElementById(divId);
	targetObj.innerHTML = dynamicContent_ajaxObjects[ajaxIndex].response;
	if(enableCache){
		jsCache[url] = 	dynamicContent_ajaxObjects[ajaxIndex].response;
	}
	dynamicContent_ajaxObjects[ajaxIndex] = false;
	
	ajax_parseJs(targetObj)
}

function ajax_loadContent(divId,url)
{
	//if(enableCache && jsCache[url]){
		//document.getElementById(divId).innerHTML = jsCache[url];
		//return;
	//}
	var brSize = messageObj.__getBrowserSize();
	var bodyWidth = brSize[0];
	var bodyHeight = brSize[1];
	var st = Math.max(document.body.scrollTop,document.documentElement.scrollTop);
	//var sl = Math.max(document.body.scrollLeft,document.documentElement.scrollLeft);
	
	var ajaxIndex = dynamicContent_ajaxObjects.length;
	
	//waiting message
	//document.getElementById(divId).style.display = 'none';
	document.getElementById(divId).innerHTML = '<table border=0><tr><td valign=middle><img src="images/loader.gif" border=0></td><td valign=middle>&#272;ang t&#7843;i d&#7919; li&#7879;u</td></tr></table>';
	document.getElementById(divId).style.visibility = 'hidden';
	document.getElementById(divId).style.left = Math.ceil((bodyWidth - document.getElementById(divId).offsetWidth) / 2) + 'px';
	document.getElementById(divId).style.top = Math.ceil((bodyHeight - document.getElementById(divId).offsetHeight) / 2) + st +'px';
	document.getElementById(divId).style.visibility = 'visible';	
	
	dynamicContent_ajaxObjects[ajaxIndex] = new sack();
	dynamicContent_ajaxObjects[ajaxIndex].requestFile = url;	// Specifying which file to get
	dynamicContent_ajaxObjects[ajaxIndex].onCompletion = function(){ ajax_showContent(divId,ajaxIndex,url); };	// Specify function that will be executed after file has been found
	dynamicContent_ajaxObjects[ajaxIndex].runAJAX();		// Execute AJAX function
	
}

function ajax_parseJs(obj)
{
	var scriptTags = obj.getElementsByTagName('SCRIPT');
	var string = '';
	var jsCode = '';
	for(var no=0;no<scriptTags.length;no++){	
		if(scriptTags[no].src){
	        var head = document.getElementsByTagName("head")[0];
	        var scriptObj = document.createElement("script");
	
	        scriptObj.setAttribute("type", "text/javascript");
	        scriptObj.setAttribute("src", scriptTags[no].src);  	
		}else{
			if(navigator.userAgent.indexOf('Opera')>=0){
				jsCode = jsCode + scriptTags[no].text + '\n';
			}
			else
				jsCode = jsCode + scriptTags[no].innerHTML;	
		}
		
	}

	if(jsCode)ajax_installScript(jsCode);
}


function ajax_installScript(script)
{		
    if (!script)
        return;		
    if (window.execScript){        	
    	window.execScript(script)
    }else if(window.jQuery && jQuery.browser.safari){ // safari detection in jQuery
        window.setTimeout(script,0);
    }else{        	
        window.setTimeout( script, 0 );
    } 
}