function nav(obj) {
	document.location.href = 'index.php?' + obj.id;
}

function navStr(str) {
	document.location.href = 'index.php?' + str;
}

function kontakt(form, back) {
	document.location.href = 'kontakt.php?dest='+form+'&back='+back;
}

function undlos() {
	elm1 = document.getElementsByName("subject")[0];
	elm2 = document.getElementsByName("sender")[0];
	
	test = 2;
	
	if (elm1.value.length < 3) elm1.style.background = "#ffaaaa";
		else {test -= 1; elm1.style.background = "#ffffff";}
	
	if (elm2.value.length < 3) elm2.style.background = "#ffaaaa";
		else {test -= 1; elm2.style.background = "#ffffff";}
	
	if (test ==  0) document.forms["mailform"].submit();
}

function mehr(str) {
	if (document.getElementById(str).style.display=='none') {
		document.getElementById(str).style.display='block';
		document.getElementById(str+'_mehr').style.display='none';
	} else {
		document.getElementById(str).style.display='none';
		document.getElementById(str+'_mehr').style.display='inline';
	}
}