/* SCREEN SIZE */
function screen_left(width) {
	return (screen.width / 2) - (width / 2);
}

function screen_top(height) {
	return (screen.height / 2) - (height / 2);
}

/* EXTERNAL LINKS */
function externalLinks() {
  if (!document.getElementsByTagName) { return; }
	var anchors = document.getElementsByTagName("a");
	for (var i = 0; i < anchors.length; i ++) {
	  var anchor = anchors[i];
	  if (anchor.getAttribute("href") && anchor.getAttribute("rel") == "external") { anchor.target = "_blank"; }
	}
}

/* DATETIME */
function datetime() {
	var months = new Array('Sausio','Vasario','Kovo','Balandžio','Gegužės','Birželio','Liepos','Rugpjūčio','Rugsėjo','Spalio','Lapkričio','Gruodžio');
	var weekdays = new Array('Sekmadienis','Pirmadienis','Antradienis','Trečiadienis','Ketvirtadienis','Penktadienis','Šeštadienis');
	var today = new Date();
	var year = today.getFullYear();
	var month = today.getMonth();
	var day = addZero(today.getDate());
	var weekday = today.getDay();
	var hour = addZero(today.getHours());
	var minute = addZero(today.getMinutes());
	var second = addZero(today.getSeconds());
	document.getElementById('datetime').innerHTML = year + " m. " + months[month] + " " + day + " d., " + weekdays[weekday] + ", " + hour + ":" + minute + ":" + second;
	window.setTimeout('datetime()', 1000);
}

/* ADD ZERO */
function addZero(number) {
  if (number < 10) { return '0' + number; }
  else { return number; }
}

/* SET INPUT VALUE */
function set_input_value(input, value) {
	document.getElementById(input).value = value;
}

/* DIALOGS */
function dialog(page,width,height) {
	if (!width) { width = 600; }
	if (!height) { height = 400; }
  window.open(''+page+'','_blank','location=0,menubar=0,resizable=0,scrollbars=1,status=0,titlebar=0,toolbar=0,width='+width+',height='+height+',left='+screen_left(width)+',top='+screen_top(height)+'');
}