REGULAR EXPRESSION TO VALIDATE TEXTBOX FOR INDIA PAN CARD NUMBER
We can use Regular Expression to validate indian pan card number in textbox . Regular expression for India Pan Card Number^([a-zA-Z]){5}([0-9]){4}([a-zA-Z]){1}?$
Inline HTML Code (which can be used): <input type="text" size="15" required pattern="^([a-zA-Z]){5}([0-9]){4}([a-zA-Z]){1}?$" />
CSS Code - Changes the Color after validation takes place.
input:valid {
background: #afa; /* green input*/
}
input:invalid {
background: #faa; /* red input */
}
example shown on - http://jsfiddle.net/BenedictLewis/mA3MV/
