function abre_form(num) {
	window.open('formulario.php?id=' + num, 'formulario', 'width=800,height=600');
}

function selecao(ins) {
	window.open('selecao.php?inst=' + ins, 'selecao', 'width=400, height=480, scrollbars=yes');
}

function aula(i, d, h) {
	window.open('aula.php?i=' + i + '&d=' + d + '&h=' + h, 'aula', 'width=400, height=480, scrollbars=yes');
}