/* * File: checkForm.js * Current Version Number: TMB Version 11, 1/10/02 * -added a validator for 3 or mor enumbers entered in (checkThreeMessage) * * Automatic form checking (for ver 4.0 browsers and above) * * Usage: * * * ... *

* * Insert the * * ... * * * where mailTo, mailFrom, mailSubject, group, and message are the * names of specific input elements that require checking (all other * input elements are ignored). * * Here is a complete list of the functions called by checkForm(): * * Element Function * ------------------------------------------------------------------ * text checkText * textarea checkTextarea * radio checkRadio * checkbox checkCheckbox * select-one checkSelectOne * select-multiple checkSelectMultiple * file checkFile * password checkPassword * * These boolean functions may be used separately (as above) or may be * overridden for further customization. For example, here's how to * use a more restrictive form of the checkSelectMultiple() function: * * * * ... * * * Finally, here is an example that handles select elements with * attribute SIZE="1" (which is the default size in HTML): * * * * ... * * * The checkSelectSpecial() function returns true if the user * makes a selection other than options[0]. * */ // Returns true if all form elements pass their respective test: function checkForm( formObj ) { // Local variables: var element, type, name, oldName; // Check all input elements: var n = formObj.elements.length; for ( var i = 0; i < n; i++ ) { element = formObj.elements[i]; type = element.type; // Ignore buttons and hidden fields: if ( type == "text" ) { if ( !checkText( element ) ) return false; } else if ( type == "textarea" ) { if ( !checkTextarea( element ) ) return false; } else if ( type == "radio" || type == "checkbox" ) { name = element.name; if ( name != oldName ) { // Obtain the corresponding group element: element = eval( "formObj." + name ); if ( type == "radio" && !checkRadio( element ) ) return false; if ( type == "checkbox" && !checkCheckbox( element ) ) return false; oldName = name; } } else if ( type == "select-one" ) { if ( !checkSelectOne( element ) ) return false; } else if ( type == "select-multiple" ) { if ( !checkSelectMultiple( element ) ) return false; } else if ( type == "file" ) { if ( !checkFile( element ) ) return false; } else if ( type == "password" ) { if ( !checkPassword( element ) ) return false; } } // All tests were successful: return true; } // Default function assignments: var checkText = checkTextGeneric; var checkTextarea = checkTextGeneric; var checkFile = checkTextGeneric; var checkPassword = checkTextGeneric; var checkSelectOne = checkSelectGeneric; var checkSelectMultiple = checkSelectGeneric; //will check a text box to make sure that you enter a "http://" at the beginning of the text box function checkWebsiteMessage( address, message ) { if ( isEmpty( address ) ) { return true; } else { var regexp = "http://"; string = "\b" + address.value; if(string.search(regexp) == -1 ) { window.alert( message ); address.value = ""; address.focus(); return false; } else { return true; } } } // Returns true if a generic text element is not empty: function checkTextMessage( textObj, message ) { if ( isEmpty( textObj ) ) { window.alert( message ); textObj.value = ""; textObj.focus(); return false; } return true; } function checkPasswordFieldsMessage(passwordObj1, passwordObj2, message) { if( passwordObj1.value.length < 6 ) { alert("Your password must be atleast 6 characters in length!"); passwordObj1.focus(); return false; } if( passwordObj2.value.length < 6 ) { alert("Your retyped password must be atleast 6 characters in length!"); passwordObj2.focus(); return false; } if( (passwordObj1.value) == (passwordObj2.value) ) return true; else { alert( message ); passwordObj1.value = "" passwordObj2.value = "" passwordObj1.focus(); return false; } } function isEmailMessage(emailObj, message) { var regexp =/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/; if(regexp.test(emailObj.value) == false) { window.alert( message ); emailObj.focus(); return false; } else return true; } // A function to check select elements with attribute SIZE="1". // Returns true if the user makes a selection other than options[0]: function checkSelectSpecialMessage( selectObj, message ) { if ( selectObj.selectedIndex == 0 ) { window.alert( message ); selectObj.focus(); return false; } return true; } // Returns true if a generic text element is not empty: function checkTextGeneric( textObj ) { if ( isEmpty( textObj ) ) { window.alert( "Enter " + textObj.name + "!" ); textObj.value = ""; textObj.focus(); return false; } return true; } // Returns true if an option of a generic select element is selected // or if the user does not wish to select any options: function checkSelectGeneric( selectObj ) { if ( selectObj.selectedIndex == -1 ) { var name = selectObj.name; if ( window.confirm( "Do you want to select " + name + "?" ) ) { selectObj.focus(); return false; } } return true; } // Returns true if a radio button is checked: function checkRadio( radioObj ) { var n = radioObj.length; for ( var i = 0; i < n; i++ ) { if ( radioObj[i].checked ) return true; } window.alert( "Please check " + radioObj[0].name + "!" ); radioObj[0].focus(); return false; } // Returns true if at least one of a group of checkboxes is checked // or if the user does not wish to check any checkboxes: function checkCheckbox( checkboxObj ) { var n = checkboxObj.length; for ( var i = 0; i < n; i++ ) { if ( checkboxObj[i].checked ) return true; } var name = checkboxObj[0].name; if ( window.confirm( "Do you want to check " + name + "?" ) ) { checkboxObj[0].focus(); return false; } return true; } // Returns true if at least one of a group of checkboxes is checked // or if the user does not wish to check any checkboxes: function checkCheckboxMessage( checkboxObj, message ) { var n = checkboxObj.length; for ( var i = 0; i < n; i++ ) { if ( checkboxObj[i].checked ) return true; } var name = checkboxObj[0].name; window.alert( message ) ; checkboxObj[0].focus(); return false; } // Returns true if an option is selected: function checkSelectStrict( selectObj ) { if ( selectObj.selectedIndex == -1 ) { window.alert( "Please select " + selectObj.name + "!" ); selectObj.focus(); return false; } return true; } // A function to check select elements with attribute SIZE="1". // Returns true if the user makes a selection other than options[0]: function checkSelectSpecial( selectObj ) { if ( selectObj.selectedIndex == 0 ) { window.alert( "Please select " + selectObj.name + "!" ); selectObj.focus(); return false; } return true; } // Returns true if the value of the text element is null or whitespace: function isEmpty( textObj ) { var regexp = /^\s*$/; return regexp.test( textObj.value ); } // For backwards compatibility with a previous version of this script: // (Do not use! Will be removed in a future version!) var checkSelect = checkSelectSpecial; function checkDateMessage(data, message) { error = 0; if((data.charAt(2)!="/" && data.charAt(5)!="/" || data.length!=10)) error = 1; else if(isNaN(data.charAt(0))||isNaN(data.charAt(1))||isNaN(data.charAt(3))||isNaN(data.charAt(4))||isNaN(data.charAt(6))||isNaN(data.charAt(7))||isNaN(data.charAt(8))||isNaN(data.charAt(9))) error = 1; else { day = eval(data.charAt(3)+data.charAt(4)); day = parseInt(day); //alert("day" + day); mnth = eval(data.charAt(0)+data.charAt(1)); mnth = parseInt(mnth); //alert("mnth" + mnth); yr = eval(data.charAt(6)+data.charAt(7)+data.charAt(8)+data.charAt(9)); yr = parseInt(yr); //alert("yr" + yr); if(mnth>12 || mnth<1) error = 2; // mnthArray[0] is january, mnthArray[11] is december mnthArray = new Array(31,29,31,30,31,30,31,31,30,31,30,31); // netscape/IE number months starting with january = 0 mnth = mnth-1; mydate = new Date(yr,mnth,day); if(mydate.getDay() != 5) // sunday==0 , saturday==6 we're checking for friday error = 4; if(day > parseInt(mnthArray[parseInt(mnth)])) error = 3; } //alert("error is" + error); switch(error) { case 1: alert( message + " must be in mm/dd/yyyy format"); return false; break; case 2: alert("The month you entered " + message + " is invalid."); return false; break; case 3: alert("The day you entered " + message + " is invalid for the month."); return false; break; case 4: return true; break; default: return true; } } function isCurrency(currency) { var regexp = /^([$]?\d*|[$]?\d*[.]\d{2})$/; if(regexp.test(currency) == false || currency=="$" || currency=="") { alert( "Please check the Currency Field!" ); return false; } else { return true; } } function isCurrencyMessage(currencyObj, message) { var regexp = /^([$]?\d*|[$]?\d*[.]\d{2})$/; if(regexp.test(currencyObj) == false || currencyObj=="$" || currencyObj=="") { alert( message ); currencyObj.focus(); return false; } else { return true; } } function isZip(zip) { var regexp = /^\d{5}$/; if(regexp.test(zip.value) == false) { window.alert( "Please check zip field!" ); zip.value.focus(); return false; } else return true; } function checkThreeMessage(field, message) { //checks if there is 3 numbers var regexp = /^(\d{3,})|(\w{3,})$/; if(regexp.test(field.value) == false) { window.alert( message ); field.focus(); return false; } else return true; } function isPhone(form) { if(form.phone.value == "") { return true; } else { var regexp = /^((\(\d{3}\)|d{3})[- ]?)?\d{3}[- ]?\d{4}$/; if(regexp.test(form.phone.value) == false) { window.alert( "Please check phone field!" ); return false; } else return true; } } // Returns true if a radio button is checked: function checkRadioMessage( radioObj, message ) { var n = radioObj.length; for ( var i = 0; i < n; i++ ) { if ( radioObj[i].checked ) return true; } window.alert( message ); radioObj[0].focus(); return false; } // Returns true if the value of the text element is a number: function isNumberMessage( textObj, message ) { var regexp = /^\d*$/; if ( isEmpty( textObj ) ) { window.alert( message ); textObj.value = ""; textObj.focus(); return false; } if(regexp.test( textObj.value ) == false) { window.alert( message ); textObj.value = ""; textObj.focus(); return false; } else return true; }