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* $Id: validate.js 162 2007-01-03 16:16:52Z spocke $
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* Various form validation methods.
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* @copyright Copyright � 2004-2007, Moxiecode Systems AB, All rights reserved.
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if (!Validator.isEmail('myemail'))
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alert('Invalid email.');
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var f = document.forms['myform'];
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if (!Validator.isEmail(f.myemail))
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alert('Invalid email.');
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isEmail : function(s) {
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return this.test(s, '^[-!#$%&\'*+\\./0-9=?A-Z^_`a-z{|}~]+@[-!#$%&\'*+\\/0-9=?A-Z^_`a-z{|}~]+\.[-!#$%&\'*+\\./0-9=?A-Z^_`a-z{|}~]+$');
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isAbsUrl : function(s) {
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return this.test(s, '^(news|telnet|nttp|file|http|ftp|https)://[-A-Za-z0-9\\.]+\\/?.*$');
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isSize : function(s) {
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return this.test(s, '^[0-9]+(px|%)?$');
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return this.test(s, '^[A-Za-z_]([A-Za-z0-9_])*$');
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isEmpty : function(s) {
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if (s.nodeName == 'SELECT' && s.selectedIndex < 1)
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if (s.type == 'checkbox' && !s.checked)
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if (s.type == 'radio') {
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for (i=0, nl = s.form.elements; i<nl.length; i++) {
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if (nl[i].type == "radio" && nl[i].name == s.name && nl[i].checked)
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return new RegExp('^\\s*$').test(s.nodeType == 1 ? s.value : s);
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isNumber : function(s, d) {
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return !isNaN(s.nodeType == 1 ? s.value : s) && (!d || !this.test(s, '^-?[0-9]*\\.[0-9]*$'));
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test : function(s, p) {
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s = s.nodeType == 1 ? s.value : s;
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return s == '' || new RegExp(p).test(s);
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number_cls : 'number',
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required_cls : 'required',
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invalid_cls : 'invalid',
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this.settings[n] = s[n];
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validate : function(f) {
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var i, nl, s = this.settings, c = 0;
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nl = this.tags(f, 'label');
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for (i=0; i<nl.length; i++)
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this.removeClass(nl[i], s.invalid_cls);
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c += this.validateElms(f, 'input');
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c += this.validateElms(f, 'select');
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c += this.validateElms(f, 'textarea');
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invalidate : function(n) {
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this.mark(n.form, n);
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reset : function(e) {
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var t = new Array('label', 'input', 'select', 'textarea');
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var i, j, nl, s = this.settings;
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for (i=0; i<t.length; i++) {
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nl = this.tags(e.form ? e.form : e, t[i]);
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for (j=0; j<nl.length; j++)
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this.removeClass(nl[j], s.invalid_cls);
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validateElms : function(f, e) {
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var nl, i, n, s = this.settings, st = true, va = Validator, v;
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nl = this.tags(f, e);
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for (i=0; i<nl.length; i++) {
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this.removeClass(n, s.invalid_cls);
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if (this.hasClass(n, s.required_cls) && va.isEmpty(n))
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st = this.mark(f, n);
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if (this.hasClass(n, s.number_cls) && !va.isNumber(n))
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st = this.mark(f, n);
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if (this.hasClass(n, s.int_cls) && !va.isNumber(n, true))
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st = this.mark(f, n);
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if (this.hasClass(n, s.url_cls) && !va.isAbsUrl(n))
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st = this.mark(f, n);
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if (this.hasClass(n, s.email_cls) && !va.isEmail(n))
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st = this.mark(f, n);
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if (this.hasClass(n, s.size_cls) && !va.isSize(n))
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st = this.mark(f, n);
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if (this.hasClass(n, s.id_cls) && !va.isId(n))
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st = this.mark(f, n);
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if (this.hasClass(n, s.min_cls, true)) {
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v = this.getNum(n, s.min_cls);
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if (isNaN(v) || parseInt(n.value) < parseInt(v))
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st = this.mark(f, n);
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if (this.hasClass(n, s.max_cls, true)) {
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v = this.getNum(n, s.max_cls);
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if (isNaN(v) || parseInt(n.value) > parseInt(v))
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st = this.mark(f, n);
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hasClass : function(n, c, d) {
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return new RegExp('\\b' + c + (d ? '[0-9]+' : '') + '\\b', 'g').test(n.className);
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getNum : function(n, c) {
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c = n.className.match(new RegExp('\\b' + c + '([0-9]+)\\b', 'g'))[0];
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c = c.replace(/[^0-9]/g, '');
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addClass : function(n, c, b) {
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var o = this.removeClass(n, c);
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n.className = b ? c + (o != '' ? (' ' + o) : '') : (o != '' ? (o + ' ') : '') + c;
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removeClass : function(n, c) {
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c = n.className.replace(new RegExp("(^|\\s+)" + c + "(\\s+|$)"), ' ');
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return n.className = c != ' ' ? c : '';
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tags : function(f, s) {
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return f.getElementsByTagName(s);
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mark : function(f, n) {
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var s = this.settings;
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this.addClass(n, s.invalid_cls);
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this.markLabels(f, n, s.invalid_cls);
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markLabels : function(f, n, ic) {
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nl = this.tags(f, "label");
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for (i=0; i<nl.length; i++) {
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if (nl[i].getAttribute("for") == n.id || nl[i].htmlFor == n.id)
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this.addClass(nl[i], ic);