var Ver4 = parseInt(navigator.appVersion) >= 4
var Nav4 = ((navigator.appName == "Netscape") && Ver4)
var IE4 = ((navigator.userAgent.indexOf("MSIE") != -1) && Ver4)

if (Nav4) {
	 var origWidth = window.innerWidth
	 var origHeight = window.innerHeight
}

function restorePage() {
	if (Nav4) {
		 if (origWidth != window.innerWidth || origHeight != window.innerHeight) {
			history.go(0)
		}
	}
}

function openPic (url) {
	var window_top = (screen.height-300)/2;
    var window_left = (screen.width-400)/2;
	var newWindow = window.open(url + '','answerwindow','scrollbars,height=300,width=400,top=' + window_top + ',left=' + window_left);
	newWindow.window.focus()
  }