// Author: Stuart Cochrane

// URL: www.freecontactform.com

// Email: stuartc1@gmail.com

// Date: 3rd July 2007

// Version: 3.0 Beta

// License: Free to use and edit, but all comments must remain intact.

 

// SPECIFY ALL REQUIRED FIELDS AND

// VALIDATION TYPE



// EXAMPLES:

// one or more characters

// required.add('[ FIELDID ]', 'NOT_EMPTY');

// alpha characters, no spaces

// required.add('[ FIELDID ]', 'ALPHA');

// alpha characters, accept spaces

// required.add('[ FIELDID ]', 'ALPHASPACE');

// numeric characters, no spaces

// required.add('[ FIELDID ]', 'NUMERIC');

// numeric characters, also accepts +-.

// required.add('[ FIELDID ]', 'NUMERICPLUS');

// alpha and numeric characters, no spaces

// required.add('[ FIELDID ]', 'ALPHANUM');

// alpha and numeric characters, accept spaces

// required.add('[ FIELDID ]', 'ALPHANUMSPACE');

// email address

// required.add('[ FIELDID ]', 'EMAIL');

// date format yyyy-mm-dd, accepts - or / separators

// required.add('[ FIELDID ]', 'YYYYMMDD');

// date format dd-mm-yyyy, accepts - or / separators

// required.add('[ FIELDID ]', 'DDMMYYYY');

// date format mm-dd-yyyy, accepts - or / separators

// required.add('[ FIELDID ]', 'MMDDYYYY');

// enter own regular expression, example: '^[0-9]{3}$'

// required.add('[ FIELDID ]', '[ REGULAR EXPRESSION ]');



// NOTES:

// [ FIELD ID ] = REPLACE WITH ACTUAL FIELD ID VALUE

// example: <input type="text" name="THIS" ID="THIS"> = THIS



// to specify your own regular expression,

// enter the literal regex as type

// example: required.add('fieldid', '^[0-9]{3}$');

// note: no leading or preceeding / (slash) is required!





function $$(id) {

try {

var tmp = document.getElementById(id).value;

}

catch(e) {

alert("Field " + id + " does not exist!\nvalidation is configured on a field with no ID");

return false;

}

if(tmp == "") {

alert("Field " + id + " cannot be empty");

return false;

}

return tmp;

}



var required = {

field : [],

add : function(name, type) {

this.field[this.field.length] = [name,type];

},

out : function() {

return this.field;

}

}



var validate = {



check : function() {

var tmp;

// loop all required fields

for(var i=0; i<required.field.length; i++) {

// check the form field exists

this.tmp = $$(required.field[i][0]);

if(this.tmp) {

if(this.checkit(required.field[i][0],required.field[i][1])) {

// validated okay

} else {

alert("Field "+required.field[i][0]+" not valid\n");

document.getElementById(required.field[i][0]).focus();

return false;

}

} else {

try {

document.getElementById(required.field[i][0]).focus();

} catch(e) { }

return false;

}

} // for

return true;

},



checkit : function(value,type) {

exp : '';

switch(type) {



case "NOT_EMPTY":

if(this.trim($$(value)).length < 1) { return false; } else { return true; }

break;



case "ALPHA":

exp = /^[A-Za-z]+$/;

if($$(value).match(exp)==null) { return false; } else { return true; }

break;



case "ALPHASPACE":

exp = /^[A-Za-z ]+$/;

if($$(value).match(exp)==null) { return false; } else { return true; }

break;



case "NUMERIC":

exp = /^[0-9]+$/;

if($$(value).match(exp)==null) { return false; } else { return true; }

break;



case "NUMERICPLUS":

exp = /(^-*\d+$)|(^-*\d+\.\d+$)/;

if($$(value).match(exp)==null) { return false; } else { return true; }

break;



case "ALPHANUM":

exp = /^[a-zA-Z0-9]+$/;

if($$(value).match(exp)==null) { return false; } else { return true; }

break;



case "ALPHANUMSPACE":

exp = /^[a-zA-Z0-9 ]+$/;

if($$(value).match(exp)==null) { return false; } else { return true; }

break;



case "EMAIL":

exp = /^[a-zA-Z0-9._%-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}$/;

if($$(value).match(exp)==null) { return false; } else { return true; }

break;



case "YYYYMMDD":

exp = /^(19|20)[0-9][0-9][- /.](0[1-9]|1[012])[- /.](0[1-9]|[12][0-9]|3[01])$/;

if($$(value).match(exp)==null) { return false; } else { return true; }

break;



case "DDMMYYYY":

exp = /^(0[1-9]|[12][0-9]|3[01])[- /.](0[1-9]|1[012])[- /.](19|20)[0-9][0-9]$/;

if($$(value).match(exp)==null) { return false; } else { return true; }

break;



case "MMDDYYYY":

exp = /^(0[1-9]|1[012])[- /.](0[1-9]|[12][0-9]|3[01])[- /.](19|20)[0-9][0-9]$/;

if($$(value).match(exp)==null) { return false; } else { return true; }

break;



default:

exp = new RegExp(type);

if($$(value).match(exp)==null) { return false; } else { return true; }

} // switch

},

trim : function(s) {

return s.replace(/^\s+/, '').replace(/\s+$/, '');

}



}

function $val(id) {

return document.getElementById(id);

}

function trim(id) {

$val(id).value = $val(id).value.replace(/^\s+/, '').replace(/\s+$/, '');

}