var windowHandle = null;
var globalImage = null;
var globalCaption = null;

function myOpen(localImage,localCaption,windowWidth,windowHeight,xPos,yPos) {
globalImage = localImage;
globalCaption = localCaption;
	
    windowHandle = window.open('popup.html','popupPic','width=' + windowWidth + ',height=' + windowHeight + ',left=' + xPos + ',top=' + yPos + 'screenX=' + xPos + ',screenY=' + yPos);
    if (!windowHandle.opener)
        windowHandle.opener = self;
}