function findObject(objectId)
{
	if(window.document.getElementById && window.document.getElementById(objectId))
		return window.document.getElementById(objectId);
	else if (window.document.all && window.document.all(objectId))
		return window.document.all(objectId);
	else if (window.document.layers && window.document.layers[objectId]) 
		return window.document.layers[objectId];
	else
		return null;
}

function selectInput(item)
{
	try
	{
		if (item != null && item.value != '')
		{
			item.select();
			item.focus();
		}
	}
	catch(e) {}
}

function submitForm(formname)
{
	try
	{
		var obj = findObject(formname);
		if (obj != null)
			obj.submit();
	}
	catch(e) {}

	return false;
}


function formRequired_OnFocus(field)
{
	if (field.value == '*')
		field.value = '';
}

function formRequired_OnBlur(field)
{
	if (field.value == '')
	{
		var color = arguments[1] ? arguments[1] : '#FF0000';

		field.style.color = color;
		field.value = '*';
	}
	else
		field.style.color = '';
}

function formRequired_Check(formobj)
{
	if (formobj != null)
	{
		for(i=0;i<formobj.elements.length;i++)
		{
			_elm = formobj.elements[i];
			switch(_elm.type)
			{
				case 'checkbox' :
				case 'radio'	:
				case 'submit'	: break;
				default :
				{
					var _req = _elm.getAttribute('required');
					if (_req != null && _req == 'true')
					{
						if (_elm.value == '' || _elm.value == '*')
							return false;
					}
					break;
				}
			}
		}
	}
	return true;
}



function getFormData(formName)
{
	var _form = null;
	var _responseBody = '';
	var _elm = null;
		
	if (typeof(findObject)=='function')
	{
		_form = findObject(formName);
	}
	else
	{
		alert('Form object ' + formName + ' could not be found');
	}

	if (_form == null)
		return null;
		
	for(i=0;i<_form.elements.length;i++)
	{
		_elm = _form.elements[i];

		switch(_elm.type)
		{
			case 'submit'	: break;
			case 'checkbox' :
			case 'radio' :
			{
				if(_elm.checked == true)
					_responseBody += '&'+ encodeURIComponent(_elm.name)+'='+encodeURIComponent(_elm.value);
				break;
			}
			default :
			{
				_responseBody += '&'+ encodeURIComponent(_elm.name)+'='+encodeURIComponent(_elm.value);
				break;
			}
		}	
	}
	
	return _responseBody;
}


function submitContact()
{
	contactformulier.CheckContact(getFormData('commonForm'),function(response)
	{
		if (response.value == null)
		{
			submitForm('commonForm');
			return true;
		}
		else
		{		
			alert(response.value);
			return false;
		}
	});
}