//Funções Gerais-->
function centralizaJanela(w,h){
	if(document.all)
	return 'width='+w+',height='+h+',left='+((window.screen.width-w)/2) +',top='+ ((((window.screen.height)-h)-60)/2);
	return 'width='+w+',height='+h+',left=50,top=50';
}
function abrePopup(url,lrg,alt,scrollbars){
	window.open(url,'popUp','scrollbars=' + scrollbars + ',' + centralizaJanela(lrg,alt))
}
function shObj(objSHID,sts){
	var stl = document.getElementById(objSHID).style;
	if(sts==''){
		if(stl.visibility=='')
			stl.visibility='hidden';
		sts=stl.visibility;
	}
	if(sts=='hidden' || sts=='s'){
		stl.visibility='visible';
		stl.position='static';
	}else{
		stl.visibility='hidden';
		stl.position='absolute';
	}
}
function checkSH(obj,objSHID){
	if(obj.checked)	shObj(objSHID,'s');
	else shObj(objSHID,'h');
}
// Adiciona evento a um objeto
function addEvent(obj, evType, fn){
    if (obj.addEventListener)
        obj.addEventListener(evType, fn, true)
	if (obj.attachEvent)
        obj.attachEvent("on"+evType, fn)
}