function valid_email(){
	if(checkMail(document.forms['news'].elements['email'].value)) 
		document.forms['news'].submit();
	else
		alert('Neteisingai įvestas el. paštas.');
}

function checkMail(x)
{
	var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if (filter.test(x)) return true;
	else return false;
}

function inputFocus(field){
	if(document.getElementById(field.name + '_').value != 1) 
		field.value='';
}

function inputBlur(field, text){
	if(document.getElementById(field.name + '_').value != 1 && field.value != '') 
		document.getElementById(field.name + '_').value = 1;
	if(document.getElementById(field.name + '_').value != 1) 
		field.value = text;
}

function show_hide(id){
	var obj = document.getElementById(id);
	if(obj.style.display=='none'){
		//obj.style.visibility='visible';
		//obj.style.position='static';
		obj.style.display = 'block';
	}else{
		//obj.style.visibility='hidden';
		//obj.style.position='absolute';
		obj.style.display = 'none';
	}
	
}