var ms = navigator.appVersion.indexOf("MSIE");
var ie4 = (ms>0) && (parseInt(navigator.appVersion.substring(ms+5, ms+6)) >= 4)
var nesc = navigator.appName.lastIndexOf("Netscape");
var nesc4 = (nesc >= 0) && (parseInt(navigator.appVersion.substring(0,2)) >= 4);

function fullscreen(bookNum,pageNum){
	if (nesc4){
		var pageHeight = window.screen.height;
		pageHeight = pageHeight-40;
    		pagewin = window.open("ebook/pageViewer.html?book="+bookNum+"&page="+pageNum,"pagewin","scrollbars,width=" + window.screen.width + ",height=" + pageHeight);
		pagewin.moveTo(0,0);
		pagewin.focus();
	}else if (ie4){
			var pageHeight = window.screen.height;
		pageHeight = pageHeight-60;
    		pagewin = window.open("ebook/pageViewer.html?book="+bookNum+"&page="+pageNum,"pagewin","scrollbars,width=" + window.screen.width + ",height=" + pageHeight);
		pagewin.moveTo(0,0);
		pagewin.focus();
	}else{
		location.href="ebook/pageViewer2.html?book="+bookNum+"&page="+pageNum;
	}
}

function fullscreen2(bookNum,pageNum){
	if (nesc4){
		var pageHeight = window.screen.height;
		pageHeight = pageHeight-40;
    		pagewin = window.open("pageViewer2.html?book="+bookNum+"&page="+pageNum,"pagewin","scrollbars,width=" + window.screen.width + ",height=" + pageHeight);
		pagewin.moveTo(0,0);
		pagewin.focus();
	}else if (ie4){
			var pageHeight = window.screen.height;
		pageHeight = pageHeight-60;
    		pagewin = window.open("pageViewer2.html?book="+bookNum+"&page="+pageNum,"pagewin","scrollbars,width=" + window.screen.width + ",height=" + pageHeight);
		pagewin.moveTo(0,0);
		pagewin.focus();
	}else{
		location.href="pageViewer2.html?book="+bookNum+"&page="+pageNum;
	}
}