function open_window (go, hor, ver) {
	window.open(go, '', 'width='+hor+',height='+ver+', left=300, top=200, toolbar=no, locationbar=no, menubar=no, personalbar=no, status=no, scrollbars=auto, resizable=yes');
}

function open_bwindow (go, hor, ver) {
	window.open(go, '', 'width='+hor+',height='+ver+', left=50, top=50, toolbar=no, locationbar=no, menubar=no, personalbar=no, status=no, scrollbars=auto, resizable=yes');
}

function show(field) {
	if (document.getElementById(field).style.visibility=="hidden")
	{
		document.getElementById(field).style.visibility="visible"
	} else {
		document.getElementById(field).style.visibility="hidden"
	}	
}

function confirmSubmit() {
var agree=confirm("ATENÇÃO: Deseja apagar este item?");
if (agree)
	return true ;
else
	return false ;
}