function ValidEmail(string)
{
 if (string.search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/) != -1)
       return true;
   else
       return false;
}

function check_data()
{
	var result = true;

	if(document.FeedForm.elements['imie'].value == "")
	{
		document.getElementById('form_imie').style.border = '1px solid #aa0000';
		result = false;
	}
	else
		document.getElementById('form_imie').style.border = '1px solid #ffffff';
	
	if(document.FeedForm.elements['nazwisko'].value == "")
	{
		document.getElementById('form_nazwisko').style.border = '1px solid #aa0000';
		result = false;
	}
	else
		document.getElementById('form_nazwisko').style.border = '1px solid #ffffff';
		
	if(ValidEmail(document.FeedForm.elements['email'].value) == false)
	{
		document.getElementById('form_email').style.border = '1px solid #aa0000';
		result = false;
	}
	else
		document.getElementById('form_email').style.border = '1px solid #ffffff';
	
	if(document.FeedForm.elements['telefon'].value == "")
	{
		document.getElementById('form_tel').style.border = '1px solid #aa0000';
		result = false;
	}
	else
		document.getElementById('form_tel').style.border = '1px solid #ffffff';
	
	if(document.FeedForm.elements['informacja'].value == "")
	{
		document.getElementById('form_info').style.border = '1px solid #aa0000';
		result = false;
	}
	else
		document.getElementById('form_info').style.border = '1px solid #ffffff';

	return result;
}