/**
 * A group of miscellaneous javascript buttons
 */

/**
 * Brings up a javascript popup to confirm a deletion
 * This helps to prevent accidental deletes.
 * Usage: onclick="return confirmDelete()" in a "<a href" tag
 */
function confirmDelete(item){
   if(item==null) {
      item = "Item";
   }
   return confirm('Are you sure you want to delete:\n' + item);
}

/**
 * Remove a default value
 */
function clearDefault(el) {
   if(el.defaultValue==el.value) {
      el.value = "";
   }
}

/**
 * Validate newsletter subscribe
 */
   var emailFilter=/^.+@.+\..{2,3}$/;
   var illegalChars= /[\(\)\<\>\,\;\:\\\/\"\[\]]/;
   function checkNewsletter(form) {
      if(form.attribute1.value.length < 2 || form.attribute1.value=="Name") {
         alert('Please enter your name');
         form.attribute1.focus()
         return false;
      }
      if(!(emailFilter.test(form.email.value))) {
         alert('Please enter a valid email address');
         form.email.focus()
         return false;
      }
      if(form.email.value.match(illegalChars)) {
         alert('The email address contains illegal characters.');
         form.email.focus()
         return false;
      }
      return true;
   }