// JavaScript Document

var myglobalFlag=0;
var xmlhttp;
var selected;
//inicializa los request para AJAX
function initXMLHTTP(){
	if (xmlhttp!=null && xmlhttp.readyState!=0 && xmlhttp.readyState!=4){//reinicializa la variable
			xmlhttp.abort();
	}
	try {
		xmlhttp=new XMLHttpRequest();
	}
	catch(error){
		try{
			xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
		}
		catch(error){
			return false;
		}
	}
}

function show_subLinks(book){
	var butterfly_jam = document.getElementById('butterfly_jam');
	var butterfly_jic = document.getElementById('butterfly_jic');
	var tab_container = document.getElementById('tab_container');
	var content = document.getElementById('content');
	if(book == 'jam'){
		butterfly_jam.style.visibility = 'visible';
		if(butterfly_jic.style.visibility == 'visible'){
				butterfly_jic.style.visibility = 'hidden';
		}
		selected = 'jam';
		if(tab_container.style.visibility = 'hidden'){
			tab_container.style.visibility = 'visible';
		}
		content.innerHTML = '';
	}
	else if(book == 'jic'){
		butterfly_jic.style.visibility = 'visible';
		if(butterfly_jam.style.visibility == 'visible'){
				butterfly_jam.style.visibility = 'hidden';
		}	
		selected = 'jic';
		if(tab_container.style.visibility = 'hidden'){
			tab_container.style.visibility = 'visible';
		}
		content.innerHTML = '';
	}
}

function showContents(section){
	initXMLHTTP();
	var url='/php/libros.php';
	if(selected == 'jam'){
		switch(section){
			case 'story':
				var sendPOST='story_jam=yes';
				break;
			case 'praise':
				var sendPOST='praise_jam=yes';
				break;
			case 'find_it':
				var sendPOST='find_jam=yes';
				break;
			default:
				break;
		}
	}
	else if(selected == 'jic'){
		switch(section){
			case 'story':
				var sendPOST='story_jic=yes';
				break;
			case 'praise':
				var sendPOST='praise_jic=yes';
				break;
			case 'find_it':
				var sendPOST='find_jic=yes';
				break;
			default:
				break;
		}
	}
	xmlhttp.open('POST',url, true);
	xmlhttp.setRequestHeader('Content-type','application/x-www-form-urlencoded');//Es necesario para hacer que los campos aparezcan en la variable global POST
	xmlhttp.setRequestHeader('Content-length',sendPOST.length);
	xmlhttp.setRequestHeader('Connection','close');
	xmlhttp.onreadystatechange=function(){//funcion anonima
		if(xmlhttp.readyState==4 && xmlhttp.status==200){
			document.getElementById('content').innerHTML =xmlhttp.responseText;
		}
		else{
			document.getElementById('content').innerHTML = '<center><img src="http://www.mundoempresarialonline.com/images/ajax-loader.gif"/></center>';
		}
	};
	xmlhttp.send(sendPOST);
}

function showContents_links(sublink){
	initXMLHTTP();
	switch(sublink){
		case 'make_something':
			var url='/php/chupirul.php';
			var sendPOST = 'make_something=yes';
			break;
		case 'lets_learn':
			var url='/php/chupirul.php';
			var sendPOST = 'lets_learn=yes';
			break;
		case 'making_jam':
			var url='/php/artista.php';
			var sendPOST = 'making_jam=yes';
			break;
		case 'making_jic':
			var url='/php/artista.php';
			var sendPOST = 'making_jic=yes';
			break;
		case 'illustrator':
			var url='/php/artista.php';
			var sendPOST = 'illustrator=yes';
			break;
		case 'calavera':
			var url='/php/artista.php';
			var sendPOST = 'calavera=yes';
			break;
		case 'trick_srcalavera':
			var url='/php/balero.php';
			var sendPOST = 'trick_srcalavera=yes';
			break;
		case 'count':
			var url='/php/balero.php';
			var sendPOST = 'count=yes';
			break;
		case 'dont_try_this':
			var url='/php/balero.php';
			var sendPOST = 'dont_try_this=yes';
			break;
		default:
			break;
	}
	xmlhttp.open('POST',url, true);
	xmlhttp.setRequestHeader('Content-type','application/x-www-form-urlencoded');//Es necesario para hacer que los campos aparezcan en la variable global POST
	xmlhttp.setRequestHeader('Content-length',sendPOST.length);
	xmlhttp.setRequestHeader('Connection','close');
	xmlhttp.onreadystatechange=function(){//funcion anonima
		if(xmlhttp.readyState==4 && xmlhttp.status==200){
			document.getElementById('content').innerHTML =xmlhttp.responseText;
		}
		else{
			document.getElementById('content').innerHTML = '<center><img src="http://www.mundoempresarialonline.com/images/ajax-loader.gif"/></center>';
		}
	};
	xmlhttp.send(sendPOST);
}

function show_number(number){
	initXMLHTTP();
	var url='/php/balero.php';
	var sendPOST = 'number='+number;
	xmlhttp.open('POST',url, true);
	xmlhttp.setRequestHeader('Content-type','application/x-www-form-urlencoded');//Es necesario para hacer que los campos aparezcan en la variable global POST
	xmlhttp.setRequestHeader('Content-length',sendPOST.length);
	xmlhttp.setRequestHeader('Connection','close');
	xmlhttp.onreadystatechange=function(){//funcion anonima
		if(xmlhttp.readyState==4 && xmlhttp.status==200){
			document.getElementById('content_velitas').innerHTML =xmlhttp.responseText;
		}
		else{
			document.getElementById('content_velitas').innerHTML = '<center><img src="http://www.mundoempresarialonline.com/images/ajax-loader.gif"/></center>';
		}
	};
	xmlhttp.send(sendPOST);
}