function validaCPF(cpf)
{
    if (cpf.length >= 11)
    {    
	    cpf = cpf.replace('.', '');
	    cpf = cpf.replace('.', '');
	    cpf = cpf.replace('-', '');
	
	    var nonNumbers = /\D/;
	
	    if (cpf == "00000000000" ||
          cpf == "11111111111" ||
          cpf == "22222222222" ||
          cpf == "33333333333" ||
          cpf == "44444444444" ||
          cpf == "55555555555" ||
          cpf == "66666666666" ||
          cpf == "77777777777" ||
          cpf == "88888888888" ||
          cpf == "99999999999") 
	    {
	    	return false;
	    }
	
	    var a = [];
	    var b = new Number;
	    var c = 11;
	
	    for (i=0; i<11; i++){
	            a[i] = cpf.charAt(i);
	            if (i < 9) b += (a[i] * --c);
	    }
	
	    if ((x = b % 11) < 2) { a[9] = 0 } else { a[9] = 11-x }
	    b = 0;
	    c = 11;
	
	    for (y=0; y<10; y++) b += (a[y] * c--);
	
	    if ((x = b % 11) < 2) 
	    { 
	    	a[10] = 0; 
	    } 
	    else 
	    { 
	    	a[10] = 11-x; 
	    }
	
	    if ((cpf.charAt(9) != a[9]) || (cpf.charAt(10) != a[10])) 
	    {
	      return false;
	    }
    }
    else
    {
        if(cpf.length == 0)
            return false
        else
            return false;
    }
    return true;    
}



function validaEmail(mail)
{
	return ((mail.length > 0) && (mail.indexOf("@") > 1) && (mail.indexOf('.') > 4))
}