Miscellaneous bug fixes

divide by zero, inaccurate discount and totals, reflection of user input


git-svn-id: http://webgoat.googlecode.com/svn/trunk/webgoat@273 4033779f-a91e-0410-96ef-6bf7bf53c507

main/project/WebContent/javascript/escape.js

@@ -0,0 +1,6 @@
+function escapeHTML (str) {
+   var div = document.createElement('div');
+   var text = document.createTextNode(str);
+   div.appendChild(text);
+   return div.innerHTML;
+}