// --------------------------------------------
// Registered User Login Form Scripts
// --------------------------------------------

function validateLoginEmail(valfield){

  var tfld = trimString(valfield.value);  // value of field with whitespace trimmed off
  var email = /^[^@]+@[^@.]+\.[^@]*\w\w$/  ;
  if (!email.test(tfld)) {
    alert("ERROR: not a valid e-mail address");
    valfield.focus();
    return false;
  }
  	return true;

}

function trimString(str){
  return str.replace(/^\s+|\s+$/g, '');
}

function clearField(field){
	value = trimString(field.value);
	switch(field.name){
		case 'username':
			if(value=='email address'){
				field.value="";
			}
		break;
		case 'password':
			if(value=="password"){
				field.value="";
			}
		break;	
	}
}

function checkField(field){
	value = trimString(field.value);
	switch(field.name){
		case 'username':
			if(value.length<1){
				field.value = "email address";
			}
		break;
		case 'password':
			if(value.length<1){
				field.value = "password";
			}
		break;	
	}
}