View file gb/js/form.js

// JavaScript Document

var smsText = document.getElementById('sendtext');
smsText.onkeyup = smsText.onkeydown = smsText.onkeypress = smsText.onchange = function ()
{
	var letters = this.value.length;
	if (letters >= 0 && letters <= 250)
	{
		document.getElementById('sendnumber').className = 'green';
	}
	else if (letters > 250 && letters <= 298)
	{
		document.getElementById('sendnumber').className = 'orange';
	}
	else
	{
		document.getElementById('sendnumber').className = 'red';
	}
	document.getElementById('sendnumber').innerHTML = letters;
}