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hello
I had found this javascript code in a book but I do not know how it work, is to say, I do not how call it from my html code!
The book say that I need to call the class : <input type="text" class="email" id="email" name="email" /> o <input type="text" class="required" id="username" name="username"/>
This code is a generical form validator and I find it very helpfull!!
The full code is:
[code]
var FormValidation =
{
rules:
{
required: /./,
requiredNotWhitespace: /\S/,
positiveInteger: /^\d*[1-9]\d*$/,
positiveOrZeroInteger: /^\d+$/,
integer: /^-?\d+$/,
decimal: /^-?\d+(\.\d+)?$/,
email: /^[\w\.\-]+@([\w\-]+\.)+[a-zA-Z]+$/,
telephone: /^(\+\d+)?( |\-)?(\(?\d+\)?)?( |\-)?(\d+( |\-)?)*\d+$/
},errors:
{
required: "Please fill in this required field.",
requiredNotWhitespace: "Please fill in this required field.",
positiveInteger:
"This field may only contain a positive whole number.",
positiveOrZeroInteger: "This field may only contain a " +
"non-negative whole number.",
integer: "This field may only contain a whole number.",
decimal: "This field may only contain a number.",
email: "Please enter a valid email address into this field.",
telephone:
"Please enter a valid telephone number into this field."
},init: function()
{
var forms = document.getElementsByTagName("form");
for (var i = 0; i < forms.length; i++)
{
Core.addEventListener(
forms, "submit", FormValidation.submitListener);
}
},submitListener: function(event)
{
var fields = this.elements;
for (var i = 0; i < fields.length; i++)
{
var className = fields.className;
var classRegExp = /(^| )(\S+)( |$)/g;
var classResult;
while (classResult = classRegExp.exec(className))
{
var oneClass = classResult[2];
var rule = FormValidation.rules[oneClass];
if (typeof rule != "undefined")
{
if (!rule.test(fields.value))
{
fields.focus();
alert(FormValidation.errors[oneClass]);
Core.preventDefault(event);
return;
}
}
}
}
}
}
[/code]
I know how to call function from html but in this code I just see labels!! as : "init", "submitListener", etc
Please can anybody tell me how it work??
Thank you and Excume me my bad english.
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jhonilson
