https://www.rvrhs.com/apps/js/document_viewer/document_viewer_20141017.js

1/* 
2	Depends on DialogBoxes 
3*/ 
4var DocumentViewer = {
5		
6	show : function(documentSource) {
7		// Close the current dialog
8		if(DialogBoxes.IsDialogOpen) {
9			DialogBoxes.hide();
10		}
11		
12		var documentContainer = document.getElementById("Document_container");
13		if(!documentContainer) {
14			documentContainer = document.createElement("div");
15			documentContainer.setAttribute("id", "Document_container");
16			documentContainer.setAttribute("style", "display: none;")
17			document.body.appendChild(documentContainer);
18		}
19		
20		var documentDiv = document.getElementById("Document_div");
21		if(!documentDiv) {
22			documentDiv = document.createElement("div");
23			documentDiv.setAttribute("id", "Document_div");
24			documentContainer.appendChild(documentDiv);
25		}
26		
27		var close = document.createElement("img");
28		close.setAttribute("style", "padding: 0 3px 5px 0; float: right; cursor: pointer;");
29		close.setAttribute("alt", "Close");
30		close.setAttribute("title", "Close")
31		close.src = "/apps/pics/close.gif";
32		close.onclick = DialogBoxes.hide;
33		
34		var w = Math.max(800, window.innerWidth - 400);
35		var h = Math.max(600, window.innerHeight - 100);
36		
37		var documentDocument = document.createElement("iframe");
38		documentDocument.setAttribute("style", "border: 1px solid #000000; background: #FFFFFF; border-radius: 6px; width: " + (w-4) + "px; height: " + (h-100) + "px;");
39		documentDocument.src = "http://docs.google.com/viewer?url=" + documentSource + "&embedded=true";
40		
41		var linkToOriginal = document.createElement("a");
42		linkToOriginal.setAttribute("style", "color: #FFFFFF; display: block; text-align: center; margin-top: 8px; font-size: 14px; padding: 0 3px 5px 0; float: none; cursor: pointer; text-shadow: 0 0 2px #000000;");
43		linkToOriginal.setAttribute("alt", documentSource);
44		linkToOriginal.setAttribute("title", documentSource)
45		linkToOriginal.href = documentSource;
46		linkToOriginal.innerHTML = "Download Original →";
47		
48		while(documentDiv.hasChildNodes()) {

49			documentDiv.removeChild(documentDiv.lastChild);
50		}
51		documentDiv.appendChild(close);
52		documentDiv.appendChild(documentDocument);
53		documentDiv.appendChild(linkToOriginal);
54		
55		DialogBoxes.show({ srcDiv: "Document_div", w: w, h: h, onClick: DialogBoxes.hide });
56	},
57	
58	isLoaded : function() {
59		return true;
60	}
61
62};