/************************************************************************ Usage ************************************************************************* .... .... ....

.... **************************************************************************/ // email function checkEmail (strng) { var error=""; if (strng == "") { error = "You didn't enter an email address.\n"; } var emailFilter=/^.+@.+\..{2,3}$/; if (!(emailFilter.test(strng))) { error = "Please enter a valid email address.\n"; }else { //test email for illegal characters var illegalChars= /[\(\)\<\>\,\;\:\\\"\[\]]/ if (strng.match(illegalChars)) { error = "The email address contains illegal characters.\n"; } } return error; } // phone number - strip out delimiters and check for 10 digits function checkPhone (strng) { var error = ""; if (strng == "") { error = "You didn't enter a phone number.\n"; } var stripped = strng.replace(/[\(\)\.\-\ ]/g, ''); //strip out acceptable non-numeric characters if (isNaN(parseInt(stripped))) { error = "The phone number contains illegal characters."; } if (!(stripped.length == 10)) { error = "The phone number is the wrong length. Make sure you included an area code.\n"; } return error; } // non-empty textbox function isEmpty(strng) { var error = ""; if (strng.length == 0) { error = "The mandatory text area has not been filled in.\n" } return error; } // First name is not empty function checkFirstName(strng) { var error = ""; if(isEmpty(strng) != "") { error="Please enter a first name.\n" } return error; } // Last name is not empty function checkLastName(strng) { var error = ""; if(isEmpty(strng) != "") { error="Please enter a last name.\n" } return error; } // exactly one radio button is chosen function checkRadio(checkvalue) { var error = ""; if (!(checkvalue)) { error = "Please check a radio button.\n"; } return error; } // valid selector from dropdown list function checkDropdown(choice) { var error = ""; if (choice == 0) { error = "You didn't choose an option from the drop-down list.\n"; } return error; }