function ImagePopup(url, width, height, title)
{
var pageWidth = 480;
var pageHeight = 340;
if (document.body && document.body.clientWidth) {
pageWidth = document.body.clientWidth;
pageHeight = document.body.clientHeight;
} else if (window.innerWidth) {
pageWidth = window.innerWidth;
pageHeight = window.innerHeight;
}
var topPos = (pageHeight - height) / 2;
var leftPos = (pageWidth - width) / 2;
var features = 'width='+width;
features += ',height='+height;
features += ',top='+topPos;
features += ',left='+leftPos;
newWindow = window.open("", "ImagePopup", features);
newWindow.document.open();
newWindow.document.write(''+title+'');
newWindow.document.write('');
newWindow.document.write('');
newWindow.document.close();
newWindow.focus();
}