function checkLengthMin(Ctrl, Var, namefield){

    if(Ctrl.value.length < Var){
       valialert(Ctrl, "The field "+namefield+" has to be at least "+Var+" characters long");
       return false;
       }
    
    return true;
}   


function checkEmail(Ctrl, namefield){
    if(!isEmail(Ctrl.value)){
       valialert(Ctrl, "Please enter "+namefield);
       return false;
       }
    return true;
}   

function isEmail(str) {
  // are regular expressions supported?
  var supported = 0;
  if (window.RegExp) {
    var tempStr = "a";
    var tempReg = new RegExp(tempStr);
    if (tempReg.test(tempStr)) supported = 1;
  }
  if (!supported) 
    return (str.indexOf(".") > 2) && (str.indexOf("@") > 0);
  var r1 = new RegExp("(@.*@)|(\\.\\.)|(@\\.)|(^\\.)");
  var r2 = new RegExp("^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$");
  return (!r1.test(str) && r2.test(str));
}