function submit_form() {
	var obj = document.forms['subscribe_form'];
	if(obj.firstname.value=='' || obj.lastname.value=='' || obj.email.value=='')
		alert('Užpildykite visus laukus');
	else obj.submit();
}

function submit_form_duk() {
	var obj = document.forms['send_quest'];
	if(obj.email.value=='' || obj.question.value=='') {
		alert('Užpildykite visus laukus');
		return false;
	}
	else return true;
}

function submitSearchForm() {
	var obj = document.forms['search'];
	action = obj.action.value + ',key.' + obj.key.value;
	window.location = action;
	
}

function check_form() {
	var obj = document.forms['order_form'];
	if(obj.firstname.data_number=='' || obj.firstname.value=='' || obj.lastname.value=='' 
	|| obj.email.value=='' || obj.phone.value=='')
		alert('Užpildykite visus laukus');
	else obj.submit();
}

function pakeisti_id234(){	
	ss1=document.getElementById('select1');
	ss2=document.getElementById('select2');
	
	ss2.options.length=0;
	
	v=ss1.value;	
	n=0;
	for(i in categories[v])
		ss2[n++]=new Option(categories[v][i], i, false, false);
	
	pakeisti_id34();
}
function pakeisti_id34(){
	ss1=document.getElementById('select2');
	ss2=document.getElementById('select3');
	
	ss2.options.length=0;
	
	v=ss1.value;	
	n=0;
	for(i in categories[v])
		ss2[n++]=new Option(categories[v][i], i, false, false);
	pakeisti_id4();
}
function pakeisti_id4(){
	ss1=document.getElementById('select3');
	ss2=document.getElementById('select4');
	
	ss2.options.length=0;
		
	v=ss1.value;	
	n=0;
	for(i in items[v])
		ss2[n++]=new Option(items[v][i], i, false, false);
}