function showId(id){
	document.getElementById(id).style.display='block';
}
function hideId(id){
	document.getElementById(id).style.display='none';
}
function showCommentForm(){
	var lObj = document.getElementById('commentForm');
	lObj.style.display='block';	
}
function commentFormSubmit(){
	clearField(document.getElementById('comment'), 'Komentaras');
	clearField(document.getElementById('name'), 'Vardas');
	clearField(document.getElementById('email'), 'El. pašto adresas');
	document.forms.commentForm.submit();
}
function clearField(obj, dVal){
	if(obj.value == dVal){
		obj.value = "";
	}
}
function controlSub(id){
	if( id == null ){
		var cObj = document.getElementById('control');
	}
	else{
		var cObj = document.getElementById(id);
	}
	if(cObj.value > 1){ cObj.value -= 1; }else{ cObj.value = 1; }
}
function controlAdd(id){
	if( id == null ){
		var cObj = document.getElementById('control');
	}
	else{
		var cObj = document.getElementById(id);
	}
	if(cObj.value < 99){ cObj.value = 1 + cObj.value*(1); }else{ cObj.value = 99; }
}
function addCart(prId, amount){
	var cookieVal = "";
	if(readCookie('cart') != ""){
		cookieVal = readCookie('cart') + "$";
	}
	createCookie('cart', cookieVal + prId + "#" + amount);
}
function readCookie(name){
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}
function createCookie(name,value){
	var date = new Date();
	date.setTime(date.getTime()+(7*24*60*60*1000));
	var expires = "; expires="+date.toGMTString();
	document.cookie = name+"="+value+expires+"; path=/";
}
function showOrderForm(){
	var lObj = document.getElementById('orderForm');
	lObj.style.display='block';	
}
function calculate( id ){
	objPrice = document.getElementById('hdn'+id);
	objCount = document.getElementById('control'+id);
	objPlace = document.getElementById('price'+id);
	objTotal = document.getElementById('total');
	
	var before = objPlace.innerHTML;
	objPlace.innerHTML = objPrice.value * objCount.value;
	
	var diff = before - objPlace.innerHTML;
	objTotal.innerHTML = (1)*objTotal.innerHTML - diff; 
}