function preparaFormularioSemFoco(form) {
	preparaFormularioMESMO(form, true);
}

function preparaFormulario(form) {
	preparaFormularioMESMO(form, false);
}

function preparaFormularioMESMO(form, focou) {

//		alert(form.elements.length);

	for (j=0; j<form.elements.length; j++) {
		if (!focou && (form.elements[j].type=='text') && !form.elements[j].disabled) {
//			form.elements[i].focus();
			focou=true;
		}

//		if (form.elements[i].type=='select-one') {
	//		form.elements[i].onchange = agir;
		//} else {
			form.elements[j].onkeyup = agir;
//		}

	}
}


function agir(e)
{
	if(!e)e=window.event;

	if(e.target)
		objEv = e.target;
	else if(e.srcElement)
		objEv = e.srcElement;
	else
		return false;

	// com acesso aos demais elementos
	for (i=0; i<objEv.form.elements.length; i++) {

		//o elemento no for
		if (objEv.form.elements[i].name == objEv.name) {

			if (objEv.type=="text" || objEv.type=="password") {
			
				// se chegou ao maxlength com tecla vlida
				if (
	objEv.form.elements[i].value.length==objEv.form.elements[i].maxLength && teclaValida(e.keyCode)
				) {
				
					focaOProximo(objEv, i, false);

				}
				// se apertou enter
				else if ( e.keyCode==13 ) {

					focaOProximo(objEv, i, true);

				}
				
			} else if (objEv.type=="select-one" || objEv.type=="radio" || objEv.type=="checkbox") {

				if ( e.keyCode==13 ) {
					focaOProximo(objEv, i, true);
				}
				
			}	
		}
	}

	// geral
	if (objEv.type=="text") {
		
	} else if (objEv.type=="select-one") {
	}

}


function focaOProximo(objetoAtual, posicao, submitEmCasoDeUltimo) {
	// se nao for o ultimo elemento
	if ( posicao < objetoAtual.form.elements.length-1 ) {
		for (j = 1; posicao+j <= objetoAtual.form.elements.length-1; j++) {
			if (objetoAtual.form.elements[posicao+j].type!="hidden" && !objetoAtual.form.elements[posicao+j].disabled ) {
				objetoAtual.form.elements[posicao+j].focus();
				break;
			}
		}
		
//		document.getElementById("string").innerHTML+="numero de campos: " + (objetoAtual.form.elements.length);
		
		if (posicao+j == objetoAtual.form.elements.length) {

			if (submitEmCasoDeUltimo) {
				doSubmit(objetoAtual.form);
			} else {
				objetoAtual.blur();
			}
		}
	//se for
	} else {
		if (submitEmCasoDeUltimo) {
			doSubmit(objetoAtual.form);
		} else {
			objetoAtual.blur();
		}
	}
}


function teclaValida(tecla) {
	return ( (tecla >= 48 && tecla <= 90) || (tecla >= 96 && tecla <= 105) );
}



function preparaTodosOsFormularios() {

	for (i = 0; i<document.forms.length; i++) {
		preparaFormulario(document.forms[i]);
	}

}


/*
function doSubmit(form) {

alert(1);
alert( form.onsubmit );
form.onsubmit();
//alert( eval(form.onsubmit) );
alert(2);

	if (form.onsubmit) {
		if (form.onsubmit())
			form.submit();
	} else {
		form.submit();
	}
}*/



function doSubmit(form) {

	if (form.onsubmit) {
		if (form.onsubmit.call())
			form.submit();
	} else {
		form.submit();
	}
}

setTimeout("preparaTodosOsFormularios();", 1000);