function getWindowWidth(win)
{
var win = win || window;
if (!isNaN(win.innerWidth))
return win.innerWidth;
if (win.document.body && !isNaN(win.document.body.clientWidth))
return win.document.body.clientWidth;
return 0;
}
function getWindowHeight(win)
{
var win = win || window;
var height = 0;
if (!isNaN(win.innerHeight))
return win.innerHeight;
if (win.document.body && !isNaN(win.document.body.clientHeight))
return win.document.body.clientHeight;
return 0;
}
/**
* Open a window centered in available screen width
*
* @param string URL
* @param integer window width
* @param integer window height
* @param string optional, additional features as used in window.open() method
* @param string optional, window name
* @return object reference to opened window, if a window with this name exists,
* a reference to it will be returned
*/
function openCenteredWindow(url, width, height, features, name)
{
if (!url || !width || !height)
return false;
var left = Math.floor((screen.width - width) / 2);
var top = Math.floor((screen.height - height) / 2);
var params = 'top=' + top + ',left=' + left + ',height=' + height + ',width=' + width;
if (features)
params += ',' + features;
var name = (name ? name : '');
var win = window.open(url, name, params);
if (parseInt(navigator.appVersion) >= 4)
win.focus();
return win;
}
/**
* Opens a window and writes an image element to its document.
* Window resizes to image dimensions.
*
* @param String URL for image file
* @param String optional, document title
* @param String optional, image alt attribute value, also set as title
* @param String optional, image event type
* @param Function optional, image event handler or reference to one,
* default closes window onclick
* @return Boolean
*/
function popupImage(src, doc_title, alt, ev_type, ev_handler)
{
var doc_title = doc_title || '';
doc_title = (doc_title != '' ? doc_title : '-');
var win_params = 'left=' + screen.width / 2 + ',top=' + screen.height / 2
+ ',width=1,height=1,resizable=yes,status=no';
var win = window.open('', '', win_params);
var initialize = function()
{
var img = this.document.getElementById('img');
img.style.cursor = 'pointer';
if (alt)
img.alt = img.title = alt;
if (ev_type && ev_handler) {
img[ev_type] = ev_handler;
} else {
img.onclick = function() { win.close(); };
}
this.resizeTo(img.width, img.height);
this.moveTo(
Math.floor((screen.width - img.width) / 2),
Math.floor((screen.height - img.height) / 2)
);
};
win.document.write(
'' + doc_title + ''
+ ' + ')
'
);
if (document.all) {
win.document.body.onload = initialize;
} else {
win.onload = initialize;
}
win.document.body.style.margin = 0;
win.document.close();
return true;
}