// the functions in this file require the supplementary library lib.js

var _POPUP_FEATURES = 'location=0,statusbar=0,menubar=0,width=300,height=300'

function raw_popup(url, target, features) {
    // pops up a window containing url optionally named target, optionally having features
    if (isUndefined(features)) features = _POPUP_FEATURES;
    if (isUndefined(target  )) target   = '_blank';
    var theWindow = window.open(url, target, features);
    theWindow.focus();
    return theWindow;
}

function link_popup(src, features) {
    // to be used in an html event handler as in: <a href="..." onclick="link_popup(this,...)" ...
    // pops up a window grabbing the url from the event source's href
    return raw_popup(src.getAttribute('href'), src.getAttribute('target') || '_blank', features);
}

function event_popup(e) {
    // to be passed as an event listener
    // pops up a window grabbing the url from the event source's href
    link_popup(e.currentTarget);
    e.preventDefault();
}

function event_popup_features(features) {
    // generates an event listener similar to event_popup, but allowing window features
    return function(e) { link_popup(e.currentTarget, features); e.preventDefault() }
}

var newwindow = 'comparisonPopup';

function popitup(url) {
	if (!newwindow.closed && newwindow.location) {
		newwindow.location.href = url;
	}
	else {
//		newwindow=window.open(url,'name','height=571,width=790,location=0,status=0,resizable=1');
// Tässä aikaisemmin arvona 571, mutta Safari tekee sen kanssa scrollit, siksi pikseli lisää
		newwindow=window.open(url,'name','height=572,width=790,location=0,status=0,resizable=1');
		if (!newwindow.opener) newwindow.opener = self;
	}
	if (window.focus) {newwindow.focus()}
	return false;
}