diff --git a/chrome/content/calendar-summary-dialog.js b/chrome/content/calendar-summary-dialog.js
index cf171530..fce55a3b 100644
--- a/chrome/content/calendar-summary-dialog.js
+++ b/chrome/content/calendar-summary-dialog.js
@@ -321,6 +321,92 @@ try{
 			}
 		}
 	},
+
+	hrefAndLinkNodeForClickEvent: function _hrefAndLinkNodeForClickEvent(event)
+	{
+		var href = "";
+		var isKeyCommand = (event.type == "command");
+		var linkNode = isKeyCommand ? this._document.commandDispatcher.focusedElement
+				        : event.originalTarget;
+
+		while (linkNode instanceof Element) {
+			if (linkNode instanceof HTMLAnchorElement ||
+			  linkNode instanceof HTMLAreaElement ||
+			  linkNode instanceof HTMLLinkElement) {
+				href = linkNode.href;
+				if (href)
+				  break;
+			}
+			// Try MathML href
+			else if (linkNode.namespaceURI == "http://www.w3.org/1998/Math/MathML" &&
+			       linkNode.hasAttribute("href")) {
+				href = linkNode.getAttribute("href");
+				href = makeURLAbsolute(linkNode.baseURI, href);
+				break;
+			}
+			// Try simple XLink
+			else if (linkNode.hasAttributeNS("http://www.w3.org/1999/xlink", "href")) {
+				href = linkNode.getAttributeNS("http://www.w3.org/1999/xlink", "href");
+				href = makeURLAbsolute(linkNode.baseURI, href);
+				break;
+			}
+			linkNode = linkNode.parentNode;
+		}
+
+		return href ? {href: href, linkNode: linkNode} : null;
+	},
+
+	onClick: function _onClick(event)
+	{
+		// Following is copied from mailWindow.js script for emails.
+		var ceParams = this.hrefAndLinkNodeForClickEvent(event);
+		if (!ceParams && !event.button)	{
+			var target = event.target;
+			// is this an image that we might want to scale?
+			if (target instanceof Components.interfaces.nsIImageLoadingContent) {
+				// make sure it loaded successfully
+				var req = target.getRequest(Components.interfaces.nsIImageLoadingContent.CURRENT_REQUEST);
+				if (!req || req.imageStatus & Components.interfaces.imgIRequest.STATUS_ERROR)
+				return true;
+				// is it an inline attachment?
+				if (/^moz-attached-image/.test(target.className)) {
+					if (target.hasAttribute("isshrunk"))
+					{
+						// currently shrunk to fit, so unshrink it
+						target.removeAttribute("isshrunk");
+						target.removeAttribute("shrinktofit");
+						target.setAttribute("overflowing", "true");
+					}
+					else if (target.hasAttribute("overflowing"))
+					{
+						// user wants to shrink now
+						target.setAttribute("isshrunk", "true");
+						target.setAttribute("shrinktofit", "true");
+						target.removeAttribute("overflowing");
+					}
+				}
+			}
+			return true;
+		}
+		var href = ceParams.href;
+
+		try {
+			var extProtService = Cc["@mozilla.org/uriloader/external-protocol-service;1"].getService();
+			extProtService = extProtService.QueryInterface(Ci.nsIExternalProtocolService);
+			var scheme = href.substring(0, href.indexOf(":"));
+			if (extProtService.isExposedProtocol(scheme)) {
+				var ioService = Cc["@mozilla.org/network/io-service;1"]
+					  .getService(Ci.nsIIOService);
+				extProtService.loadUrl(ioService.newURI(href, null, null));
+			}
+		} 
+		catch (ex) {
+			alert("Do not know how to handle this reference:"+href);
+		}
+
+		event.preventDefault();
+		return true;
+	},
 }
 
 //this._window.addEventListener("load", exchWebService.forewardEvent2.onLoad, false);
diff --git a/chrome/content/calendar-summary-dialog.xul b/chrome/content/calendar-summary-dialog.xul
index 1b70d4b0..cc596c3a 100644
--- a/chrome/content/calendar-summary-dialog.xul
+++ b/chrome/content/calendar-summary-dialog.xul
@@ -52,7 +52,12 @@
 		<script type="application/javascript" src="chrome://exchangecalendar/content/calendar-summary-dialog.js" />
 		<box id="item-description-box" flex="1">
 
-		<browser id="exchWebService-body-editor" class="exchWebService-browser-class" type="content-targetable" insertafter="item-description" flex="1"/>
+		<browser id="exchWebService-body-editor" 
+			class="exchWebService-browser-class" 
+			type="content-targetable" 
+			insertafter="item-description" 
+			onclick = "return tmpEventSummaryDialog.onClick(event);"
+			flex="1"/>
 
 		<commandset id="itemCommands">
 		</commandset>