function BxJsForms ()
{

}

// get value

BxJsForms.prototype.get = function (s)
{
	if (document.forms[this.name].elements[s])
		return document.forms[this.name].elements[s];
			
	s += '[]';	
	return document.forms[this.name].elements[s];
}

// err rhandling

BxJsForms.prototype.showErr = function (s, err)
{
	var o = document.getElementById ('f_err_' + s);
    if (!o) return;
	o.innerHTML = err;
	o.style.display = 'inline';
}

BxJsForms.prototype.hideErr = function (s)
{
	var o = document.getElementById ('f_err_' + s);
	if (!o) return;
	o.style.display = 'none';
}

// check functions 

BxJsForms.prototype.checkRegExp = function (e, p)
{	
	if (e && undefined == e.name) // process set of radio/check boxes
	{		
		var s = '';
		var ret = false;
		for (var i=0; i < e.length ; ++i)
		{
			if (!e[i].checked) continue;
			var r = new RegExp (p['regexp'], p['regexp_mod']);
			if (!r.test(e[i].value)) return false;
			ret = true;
		}		
		return ret;
	}
	var r = new RegExp (p['regexp'], p['regexp_mod']);
	return r.test(e.value);
}

BxJsForms.prototype.checkLen = function (e, p)
{
	var s = e.value;
	if (!s || s.length < p['min'] || s.length > p['max']) return false;
	return true;
}

BxJsForms.prototype.checkAvail = function (e, p)
{
	if (!e) return false;
	var s = e.value; 
	if (!s || !s.length) return false;
	return true;
}

BxJsForms.prototype.isEnabled = function (e, p)
{	
	if (!e) return false;
	var s = e.checked; 
	if (!s) return false;
	return true;
}
BxJsForms.prototype.checkPassword = function (e, p)
{		
	var sPassword = e.value;
	var sConfirm = $(e.id + '_confirm').value;		
	
	//--- Check Length ---//	
	if(!sPassword.length || !sConfirm.length || sPassword.length != sConfirm.length) return false;
	
	//--- Check Content ---//
	if(sPassword != sConfirm) return false;
		
	return true;
}