//Valida Data no Formato dd/mm/aaaa
function isDate(pStr) {
    var reDate1 = /^((0[1-9]|[12]\d)\/(0[1-9]|1[0-2])|30\/(0[13-9]|1[0-2])|31\/(0[13578]|1[02]))\/\d{4}$/;
    eval("reDate = " + reDate1);
	if (reDate.test(pStr)) {
        return true;
	} else if ((pStr != null && pStr != "") || (pStr == null || pStr == "")) {
        return false;
	}
} // doDate

//Valida email
function isEmail(pStr) {
	var reEmail = /^[\w-]+(\.[\w-]+)*@(([A-Za-z\d][A-Za-z\d-]{0,61}[A-Za-z\d]\.)+[A-Za-z]{2,6}|\[\d{1,3}(\.\d{1,3}){3}\])$/;
    eval("reEmail = " + reEmail);
	if (reEmail.test(pStr)) {
		return true;
	} else if (pStr != null && pStr != "") {
		return false;
	}
} // isEmail

function somenteNumero(e){
  var tecla=(window.event)?event.keyCode:e.which;
  if((tecla > 47 && tecla < 58)) 
    return true;
  else {
    if (tecla != 8) 
      return false;
    else 
     return true;
  }
}