//Requires http://www.jsfromhell.com/Geral/event-listener

//+ Jonas Raoni Soares Silva
//@ http://jsfromhell.com/forms/auto-tab [v1.0]

autoTab = function(){
	for( var d, f = ( d = document ).forms, i = f.length; i; addEventListener( f[--i], "keyup", function( e ){
		var el, k = String.fromCharCode( e.key ), l = ( e = e.target ).value.length;
		if ( l >= ( e.getAttribute( "maxlength" ) || l + 1 ) && /[\wÀ-ÿ ]/.test( k ) ){
			for( l = k = ( el = e.form.elements ).length; el[--k] != e; );
			while( !(e = el[ k = ++k * ( k < l ) ]).type || e.disabled );
			e.focus();
		}
	} ) );
};

// REQUIRES: http://jsfromhell.com/geral/event-listener

//+ Jonas Raoni Soares Silva
//@ http://jsfromhell.com/forms/masked-input [v1.0]

MaskInput = function(f, m){ //v1.0
    function mask(e){
        var patterns = {"1": /[A-Z]/i, "2": /[0-9]/, "4": /[À-ÿ]/i, "8": /./ },
            rules = { "a": 3, "A": 7, "9": 2, "C":5, "c": 1, "*": 8};
        function accept(c, rule){
            for(var i = 1, r = rules[rule] || 0; i <= r; i<<=1)
                if(r & i && patterns[i].test(c))
                    break;
                return i <= r || c == rule;
        }
        var k, mC, r, c = String.fromCharCode(k = e.key), l = f.value.length;
        (!k || k == 8 ? 1 : (r = /^(.)\^(.*)$/.exec(m)) && (r[0] = r[2].indexOf(c) + 1) + 1 ?
            r[1] == "O" ? r[0] : r[1] == "E" ? !r[0] : accept(c, r[1]) || r[0]
            : (l = (f.value += m.substr(l, (r = /[A|9|C|\*]/i.exec(m.substr(l))) ?
            r.index : l)).length) < m.length && accept(c, m.charAt(l))) || e.preventDefault();
    }
    for(var i in !/^(.)\^(.*)$/.test(m) && (f.maxLength = m.length), {keypress: 0, keyup: 1})
        addEvent(f, i, mask);
};

//]]>
</script>

<form action="">
telephone "(99)9999-9999"

<input type="text" />

date "99/99/9999"

<input type="text" />


máscara = letter + letter withou accent + 2 numbers + "-" + anything + letter "Cc99-*C"

<input type="text" />


everything, but a, b or c "E^abc"

<input type="text" />


only a, b or c "O^abc"

<input type="text" />


just letters "C^"

<input type="text" />


just letters and also white-space "C^ "

<input type="text" />


just numbers and also the letters a, b e c "9^abc"

<input type="text" />

</form>

<script>
with( document.forms[0] ){
MaskedInput.apply( elements[0], '(99)9999-9999' );
MaskedInput.apply( elements[1], '99/99/9999' );
MaskedInput.apply( elements[2], 'Cc99-*C' );
MaskedInput.apply( elements[3], 'E^abc' );
MaskedInput.apply( elements[4], 'O^abc' );
MaskedInput.apply( elements[5], 'C^' );
MaskedInput.apply( elements[6], 'C^ ' );
MaskedInput.apply( elements[7], '9^abc' );
}
</script>

//Requires http://jsfromhell.com/geral/event-listener

//+ Jonas Raoni Soares Silva
//@ http://jsfromhell.com/forms/enter-as-tab [v1.0]

enterAsTab = function(){
	for( var f, i = ( f = document.forms ).length; i; addEventListener( f[--i], "keypress", function( evt ){
		var el, l, k = evt.key == 13, e = evt.target;
		if( k && !/textarea|select/i.test( e.type ) && !evt.preventDefault() ){
			for( l = k = ( el = e.form.elements ).length; el[--k] != e; );
			while( !(e = el[ k = ++k * ( k < l ) ]).type || e.disabled );
			e.focus();
		}
	} ) );
};

<form action="">
	<p>
	<input type="text" />
	<br /><input type="text" />
	<br /> <input type="radio" name="aaa" /> opção 1
	<input type="radio" name="aaa" checked="checked" /> opção 2
	<br /><textarea rows="3" cols="15">aaaaaa pode dar enter q ele naum pula hahah</textarea>
	<br /><select><option>opção blablablabla</option><option>opção bleblebleble</option></select>
	<br /><input type="text" />
	</p>
</form>


<script type="text/javascript">
//<![CDATA[

enterAsTab();

//]]>
</script>