function showHideEmail(id_td, id_label,add) {
	
	if(document.getElementById(id_td).style.display == 'none') {
	
		document.getElementById(id_td).style.display = '';
		document.getElementById(id_label).innerHTML = 'Ukryj formularz »';
		
	//	if(add == true) document.getElementById(id_label).href = '#'+id_label;
		
	} else {
		
		document.getElementById(id_td).style.display = 'none';
		document.getElementById(id_label).innerHTML = 'Pokaż formularz wysyłania wiadomości »';
	
	//	document.getElementById(id_label).href = '#';
	}
}

function showHide(checkbox,hidden) {
	
	var display = 'none';
	
	if(document.getElementById(checkbox).checked == true) display = 'block';

	document.getElementById(hidden).style.display = display;
}

function checkSendMessage() {
	
	var error = '';
	
	if(document.getElementById('email_from').value == "") {
		
		error += 'Nie podano adresu e-mail!\n';
	}
	
	if(document.getElementById('subject').value == "") {
		
		error += 'Nie podano tematu wiadomości!\n';
	}
	
	if(document.getElementById('message').value == "") {
		
		error += 'Nie podano treści wiadomości!\n';
	}
	
	if(document.getElementById('captcha_code').value == "") {
		
		error += 'Nie przepisano tekstu z obrazka!\n';
	}
	
	if(error != '') {
		
		alert(error);
		
		return false;
	}
	else return true;
}

function changeContent(){
	
	var obj = document.getElementById('opcja1');
	
	selected = obj.selectedIndex;
	
	switch(obj.options[selected].value) {
	
		case 'mieszkanie':
		letter = 'm';
		break;
		
		case 'dom':
		letter = 'd';
		break;
		
		case 'obiekt':
		letter = 'b';
		break;
			
		case 'działka':
		letter = 'z';
		break;
		
		case 'lokal':
		letter = 'o';
		break;
		
		default:
		letter = '';
	}
	
	
	var all = new Array('d1','d2','d3','d4','d5','o1','o2','o3','o4','o5','b1','m1','m2','m3','m4','m5','m6','m7','m8','m9','z1');
 
	for(i = 0; i < all.length; i++) {

		 document.getElementById(all[i]).style.display = 'none';
	}
	
	if(letter != '') {
		
		for(i = 0; i < all.length; i++) {
	
			if(all[i].charAt(0) == letter) document.getElementById(all[i]).style.display = '';	
		}	
	}
}