function changeDiv(wdiv,newClass) {
	thediv = document.getElementById(wdiv);
	thediv.className = newClass;
// 	if(thediv.className == 'formulario_visible'){
// 		thediv.className = 'formulario_hidden';
// 	} else if (thediv.className == 'formulario_hidden'){
// 		thediv.className = 'formulario_visible';
// 	}
}