function windowOpener(windowWidth, windowHeight, windowName, windowUri)
{
    var centerWidth = (window.screen.width - windowWidth) / 2;
    var centerHeight = (window.screen.height - windowHeight) / 2;

    newWindow = window.open(windowUri, windowName, 'width=' + windowWidth + 
        ',height=' + windowHeight + 
        ',left=' + centerWidth + 
        ',top=' + centerHeight +
		',status=no' +
		',toolbar=no' +
		',menubar=no' +
		',location=no' +
		',resizable=no'
	);

    newWindow.focus();
    return newWindow.name;
}