Forcing form text to be lower-case

in CSS:

form input[type="text"] {
    text-transform: lowercase;
}

otherwise in JS:

var text="this is my text.";
var lowercase=text.toLowerCase();

You have to use javascript. I have an example here: http://jsfiddle.net/xCfdS/3/

HTML: <input type="text" id="txt" onkeyup="return forceLower(this);"/>

Javascript:

function forceLower(strInput) 
{
strInput.value=strInput.value.toLowerCase();
}

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