/*
 * autor: Ciro Feitosa - http://cirofeitosa.com.br
 * maio/2005
 */

function checaForm(obj)
{

	if (obj.elements['login'].value == '' || obj.elements['senha'].value == '')
	{
		alert('Preencha os campos Login e Senha.');
		return false;
	}

	return true;

}

/********************************************************
* Jonas Raoni Soares Silva
* http://www.joninhas.ath.cx:666
********************************************************/

addEvent = function(o, e, f){
    var a, r = o[r = "_" + (e = "on" + e)] = o[r] || (o[e] ? [o[e]] : []);
    r[r.length] = f, o[e] = function(e){
        try{
            (e = e || event).preventDefault || (e.preventDefault = function(){e.returnValue = false;});
            e.stopPropagation || (e.stopPropagation = function(){e.cancelBubble = true;});
            e.target || (e.target = e.srcElement || null);
            e.key = (e.which + 1 || e.keyCode + 1) - 1 || 0;
        }catch(f){}
        for(f in r)
            a = r[f], a.call ? a.call(o, e) : (o._ = a, o._(e), o._ = null);
        e = null;
    }
};
removeEvent = function(o, e, f){
    for(var i in e = o["_on" + e])
        if(e[i] == f)
            return delete e[i];
    return false;
};

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

autoTab = function(){ //v1.0
    for( var d, f = ( d = document ).forms, i = f.length; i; addEvent( f[--i], "keyup", function( e ){
        var k = e.key, el = ( e = e.target ).form.elements;
        if ( e.value.length >= ( e.getAttribute( "maxlength" ) || e.value.length + 1 ) && /[\wÀ-ÿ ]/.test( String.fromCharCode( k ) ) ){
            for ( k = el.length; el[--k] != e; );
            while( !el[ k = ++k * ( k < el.length ) ].type );
            el[k].focus();
        }
    } ) );
};