/* <![CDATA[ */


function getElementsByClass(searchClass,node,tag) {
	var classElements = new Array();
	if ( node == null )
		node = document;
	if ( tag == null )
		tag = '*';
	var els = node.getElementsByTagName(tag);
	var elsLen = els.length;
	var pattern = new RegExp("(^|\\\\s)"+searchClass+"(\\\\s|$)");
	for (i = 0, j = 0; i < elsLen; i++) {
		if ( pattern.test(els[i].className) ) {
			classElements[j] = els[i];
			j++;
		}
	}
	return classElements;
}


function mudaConteudoAba(idDivBlock, abaBlock, navegacao) {
	
	var conteudo;
	
	conteudo = getElementsByClass('conteudo_interno');
	abas = document.getElementById('menu_interno').getElementsByTagName('a');
	
	for (i=0; i<abas.length; i++) {
		abas[i].className='';
	}
	
	for (i=0; i<conteudo.length; i++) {
		conteudo[i].style.display='none';
	}
	
	document.getElementById(idDivBlock).style.display='block';
	document.getElementById(navegacao).innerHTML = abaBlock.innerHTML;
	
	abaBlock.className='selected';
}



/* ]]> */