--- loncom/interface/lonhtmlcommon.pm	2004/03/01 16:19:45	1.58
+++ loncom/interface/lonhtmlcommon.pm	2004/03/03 22:55:35	1.59
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common html routines
 #
-# $Id: lonhtmlcommon.pm,v 1.58 2004/03/01 16:19:45 www Exp $
+# $Id: lonhtmlcommon.pm,v 1.59 2004/03/03 22:55:35 matthew Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -201,6 +201,13 @@ Also, to be explicit, a value of 'now' a
 Additional html/javascript to be associated with each element in
 the date_setter.  See lonparmset for example usage.
 
+=item $includeempty 
+
+=item $state
+
+Specifies the initial state of the form elements.  Either 'disabled' or empty.
+Defaults to empty, which indiciates the form elements are not disabled. 
+
 =back
 
 Bugs
@@ -212,7 +219,10 @@ The method used to restrict user input w
 ##############################################
 ##############################################
 sub date_setter {
-    my ($formname,$dname,$currentvalue,$special,$includeempty) = @_;
+    my ($formname,$dname,$currentvalue,$special,$includeempty,$state) = @_;
+    if (! defined($state) || $state ne 'disabled') {
+        $state = '';
+    }
     if (! defined($currentvalue) || $currentvalue eq 'now') {
 	unless ($includeempty) {
 	    $currentvalue = time;
@@ -261,18 +271,39 @@ sub date_setter {
         }
     }
 
+    function $dname\_disable() {
+        document.$formname.$dname\_month.disabled=true;
+        document.$formname.$dname\_day.disabled=true;
+        document.$formname.$dname\_year.disabled=true;
+        document.$formname.$dname\_hour.disabled=true;
+        document.$formname.$dname\_minute.disabled=true;
+        document.$formname.$dname\_second.disabled=true;
+    }
+
+    function $dname\_enable() {
+        document.$formname.$dname\_month.disabled=false;
+        document.$formname.$dname\_day.disabled=false;
+        document.$formname.$dname\_year.disabled=false;
+        document.$formname.$dname\_hour.disabled=false;
+        document.$formname.$dname\_minute.disabled=false;
+        document.$formname.$dname\_second.disabled=false;        
+    }
+
     function $dname\_opencalendar() {
-       var calwin=window.open(
+        if (! document.$formname.$dname\_month.disabled) {
+            var calwin=window.open(
 "/adm/announcements?pickdate=yes&formname=$formname&element=$dname&month="+
 document.$formname.$dname\_month.value+"&year="+
 document.$formname.$dname\_year.value,
              "LONCAPAcal",
               "height=350,width=350,scrollbars=yes,resizable=yes,menubar=no");
+        }
 
     }
 </script>
 ENDJS
     $result .= "  <nobr><select name=\"$dname\_month\" ".$special.' '.
+        $state.' '.
         "onChange=\"javascript:$dname\_checkday()\" >\n";
     my @Months = qw/January February  March     April   May      June 
                     July    August    September October November December/;
@@ -285,14 +316,14 @@ ENDJS
         $result .= "> ".&mt($Months[$m])." </option>\n";
     }
     $result .= "  </select>\n";
-    $result .= "  <input type=\"text\" name=\"$dname\_day\" ".
+    $result .= "  <input type=\"text\" name=\"$dname\_day\" ".$state.' '.
             "value=\"$mday\" size=\"3\" ".$special.' '.
             "onChange=\"javascript:$dname\_checkday()\" />\n";
-    $result .= "  <input type=\"year\" name=\"$dname\_year\" ".
+    $result .= "  <input type=\"year\" name=\"$dname\_year\" ".$state.' '.
             "value=\"$year\" size=\"5\" ".$special.' '.
             "onChange=\"javascript:$dname\_checkday()\" />\n";
     $result .= "&nbsp;&nbsp;";
-    $result .= "  <select name=\"$dname\_hour\" ".$special." >\n";
+    $result .= "  <select name=\"$dname\_hour\" ".$special." ".$state.' '.">\n";
     if ($includeempty) { $result.="<option value=''></option>"; }
     for (my $h = 0;$h<24;$h++) {
         $result .= "      <option value=\"$h\" ";
@@ -313,8 +344,10 @@ ENDJS
     } 
     $result .= "  </select>\n";
     $result .= "  <input type=\"text\" name=\"$dname\_minute\" ".$special.' '.
+        $state.' '.
         "value=\"$min\" size=\"3\" /> m\n";
     $result .= "  <input type=\"text\" name=\"$dname\_second\" ".$special.' '.
+        $state.' '.
         "value=\"$sec\" size=\"3\" /> s\n";
     $result .= "<a href=\"javascript:$dname\_opencalendar()\">".
     &mt('Select Date')."</a></nobr>\n<!-- end $dname date setting form -->\n";