added function isCleanForName() which is needed for checking image- and file-aliases for invalid characters. allowed are a-zA-Z0-9.-_space. the former used function isClean() is a bit restrictive for that, on the other hand umlauts etc. lead to problems.

code/Global/objectFunctions.js

@@ -54,6 +54,18 @@ function isCleanForURL(str) {
    return true;
 }
 
+/**
+ * function checks if the string passed contains any characters that
+ * are forbidden in image- or filenames
+ */
+
+function isCleanForName(str) {
+   var invalidChar = new RegExp("[^a-zA-Z0-9\\.\\-_ ]");
+   if (invalidChar.exec(str))
+      return false;
+   return true;
+}
+
 /**
  * function checks if there is a site-object in path
  * if true, it returns it