function XMLHTTPRequest(){var http=0;if(window.XMLHttpRequest){http=new XMLHttpRequest();}else{try{http=new ActiveXObject("Msxml2.XMLHTTP");}catch(e){try{http=new ActiveXObject("Microsoft.XMLHTTP");}catch(e){http=false;}}}
return http;}
function mostrar_pagina(url,div){var http=XMLHTTPRequest();if(http){http.onreadystatechange=function(){if(http.readyState==4&&http.status==200){var retorno=unescape(http.responseText.replace(/\+/g," "));document.getElementById(div).innerHTML=retorno}}
http.open('GET',url,true);http.send(null);}else{alert('Erro seu navegador nao suporta ajax');}}
function iniciar(){var items=[],allItems=document.getElementsByTagName("li");for(var i=0;i<allItems.length;i++){allItems[i].onclick=function(){for(var item=this.parentNode.firstChild;item;item=item.nextSibling){item.className='normal';}
this.className='current';pagina=this.value;mostrar_pagina('receber.php?pagina='+pagina,'conteudo_aba');}}
var aba=document.getElementsByTagName("span");for(var j=0;j<aba.length;j++){aba[j].onmouseover=function(){if(this.className!='link center'){this.className='link center';}}
aba[j].onmouseout=function(){if(this.className!='normal center'){this.className='normal center';}}}}
function iniciar2(cat,prox,sinal){mostrar_pagina('receber.php?pagina='+cat+'&next='+prox+'&sinal='+sinal,'conteudo_aba');}
$(document).ready(function(){iniciar();mostrar_pagina('receber.php?pagina=27','conteudo_aba');});