function switchTabs(targetUrl,tabId,boxId){

	var url = targetUrl;

//	document.getElementById(tabId).className = 'on';
	//alert(document.getElementById(tabId).style.className);
	var pars = '';
	var myAjax = new Ajax.Updater('conteudo-abas-'+boxId, url, { method: 'get', parameters: pars });

}


function posiciona01(s){
if(document.layers){return document.layers[s];}
else if(document.all && !document.getElementById) {return document.all[s];}else {return document.getElementById(s);}}
function posiciona02(s,x,y){_o = posiciona01(s);_o.style.clip = 'rect(0px '+x+'px '+y+'px 0px)';}