-function check_right_number_format(input_name) {
-//   if(thpoint) {
-//     if(thpoint == ','){
-//       var thnumbers = input_name.value.split(',');  
-//       thnumbers[thnumbers.length-1] = thnumbers[thnumbers.length-1].substring((thnumbers[thnumbers.length-1].lastIndexOf(".") !== -1 ? thnumbers[thnumbers.length-1].lastIndexOf(".") : thnumbers[thnumbers.length-1].length), 0);
-//     }
-//     else{
-//       var thnumbers = input_name.value.split('.');  
-//       thnumbers[thnumbers.length-1] = thnumbers[thnumbers.length-1].substring((thnumbers[thnumbers.length-1].lastIndexOf(",") !== -1 ? thnumbers[thnumbers.length-1].lastIndexOf(",") : thnumbers[thnumbers.length-1].length), 0);
-//     }
-//         
-//     for(var i = 0; i < thnumbers.length; i++) {
-//      if(i == 0 && thnumbers[i].length > 3) {
-//       return show_alert_and_focus(input_name, wrongNumberFormat);
-//      }
-//      if(i > 0 && thnumbers[i].length != 3) {
-//        return show_alert_and_focus(input_name, wrongNumberFormat);
-//      }
-//    }
-//   }
-  if(decpoint == thpoint) {
-    return show_alert_and_focus(input_name, wrongNumberFormat);
-  }
-  if(decpoint == ',') {
-    var decnumbers = input_name.value.split(',');
-  }
-  else {
-    var decnumbers = input_name.value.split('.');
-  }
-  if(decnumbers.length == 2) {
-    if(decnumbers[1].length > 2)  {
-      return show_alert_and_focus(input_name, wrongNumberFormat);
-    }
-  }
-  else {
-    if(decnumbers.length > 2) {
-      return show_alert_and_focus(input_name, wrongNumberFormat);
-    }
-    if(!thpoint) {
-      if(decnumbers[0].match(/\D/)) {
-        return show_alert_and_focus(input_name, wrongNumberFormat);
-      }
-    }
-  }
+function focussable(e) {
+  return e && e.name && e.type != 'hidden' && e.type != 'submit' && e.disabled != true;
+}
+
+function set_cursor_to_first_element(){
+  var df = document.forms;
+  for (var f = 0; f < df.length; f++)
+    for (var i = 0; i < df[f].length; i++)
+      if (focussable(df[f][i]))
+        try { df[f][i].focus(); return } catch (er) { }
+}
+
+function getElementByIndirectName(name){
+  var e = document.getElementsByName(name)[0];
+  if (e) return document.getElementsByName(e.value)[0];