<!--
function getBrowserSize() {
      // Default settings for dimensions.
      var dimensions = {
	     width : 800,
	     height : 600
      }

      // Netscape settings.      
      if (parseInt(navigator.appVersion) > 3) {
	     if (navigator.appName == "Netscape") {
		   dimensions.width = window.innerWidth;
		   dimensions.height = window.innerHeight;
	     }
      }

      // IE settings.
      if (navigator.appName.indexOf("Microsoft") != -1) {
	     if (document.documentElement && (document.documentElement.clientWidth || document.documentElement.clientHeight)) {
		   dimensions.width = document.documentElement.clientWidth;
		   dimensions.height = document.documentElement.clientHeight;
	     }
	     
	     else if (document.body && (document.body.clientWidth || document.body.clientHeight)) {
		 dimensions.width = document.body.clientWidth;
		 dimensions.height = document.body.clientHeight;                  
	     }
      }

      return dimensions;         
}


function openClassicalBook(url) {
	var browserDimensions = getBrowserSize();
	var popupWidth = 800;
	var popupHeight = 600;
	var centerX = (browserDimensions.width / 2);
	var centerY = (browserDimensions.height - popupHeight) / 2;
	var positionX = centerX - (popupWidth / 2);
	var positionY = centerY - (popupHeight / 2);
	var newwindow = window.open(url, 'classicalBook', 'toolbar=no, status=no, width=800, height=600, top=' + centerY + ', left=' + positionX);
}
-->