Question

I need to implement in Html/javascript (or php is possible) a script which works like twitter, when the user writes text in a field a label change showing the characters left.

Can you help me with a simple and easy script example?

Answer 1

<script>
function checkCharCount(textfield){
    if(textfield.value.length > 300) textfield.value = textfield.value.substr(0, 300);
    document.getElementById("charCounter").innerHTML = 300 - textfield.value.length;
}
</script>

<textarea class="input" name="REMARK" rows="5" cols="45" maxlength="300" wrap="virtual" onKeyUp="checkCharCount(this);"></textarea> 
<div><span id="charCounter">300</span> characters left.</div>