function openTreeNode(id) {
   thisImage = document.getElementById('tree_icon_' + id);
   thisDiv = document.getElementById('task_children_' + id);
   thisSummary = document.getElementById('task_children_summary_' + id);

   if (thisDiv) {
      thisImage.src = "images/tree_open.gif";
      thisDiv.style.display = "block";
      thisSummary.style.display = "none";
   }
}

function closeTreeNode(id) {
   thisImage = document.getElementById('tree_icon_' + id);
   thisDiv = document.getElementById('task_children_' + id);
   thisSummary = document.getElementById('task_children_summary_' + id);

   if (thisDiv) {
      thisImage.src = "images/tree_closed.gif";
      thisDiv.style.display = "none";
      thisSummary.style.display = "block";
   }
}

function toggleTreeNode(id) {
   thisDiv = document.getElementById('task_children_' + id);

   if (thisDiv) {
      if (thisDiv.style.display == "none") {
         openTreeNode(id);
      }
      else {
         closeTreeNode(id);
      }
   }
}

function toggleTreeNodes(id, taskChildren) {
   formsDiv = document.getElementById('task_body_' + id);
//   formsImage = document.getElementById('forms_icon_' + id);

   if (formsDiv) {
      if (formsDiv.style.display == "none") {
         openTreeNode(id);
         openForm(id);
         for (i = 0; i < taskChildren.length; i++) {
            openForm(taskChildren[i]);
            theseChildren = document.getElementById('task_children_summary' + id);
            if (theseChildren) {
               openTreeNode(taskChildren[i]);
            }
         }
//         formsImage.src = "images/forms_open.gif";
      }
      else {
         for (i = 0; i < taskChildren.length; i++) {
            closeForm(taskChildren[i]);
         }
//         formsImage.src = "images/forms_closed.gif";
         closeTreeNode(id);
         closeForm(id);
      }
   }
}

function toggleForm(id) {
   thisDiv = document.getElementById('task_body_' + id);

   if (thisDiv) {
      if (thisDiv.style.display == "none") {
         openForm(id);
      }
      else {
         closeForm(id);
      }
   }
}

function toggleForms(id, taskChildren) {
   formsDiv = document.getElementById('task_body_' + id);
//   formsImage = document.getElementById('forms_icon_' + id);

   if (formsDiv) {
      if (formsDiv.style.display == "none") {
         openTreeNode(id);
         openForm(id);
         for (i = 0; i < taskChildren.length; i++) {
            openForm(taskChildren[i]);
            theseChildren = document.getElementById('task_children_summary' + id);
            if (theseChildren) {
               openTreeNode(taskChildren[i]);
            }
         }
//         formsImage.src = "images/forms_open.gif";
      }
      else {
         for (i = 0; i < taskChildren.length; i++) {
            closeForm(taskChildren[i]);
         }
//         formsImage.src = "images/forms_closed.gif";
         closeTreeNode(id);
         closeForm(id);
      }
   }
}

function openForm(id) {
   thisImage = document.getElementById('form_icon_' + id);
   thisDiv = document.getElementById('task_body_' + id);

   if (thisDiv) {
      thisDiv.style.display = "block";
      thisImage.src = "images/form_open.gif";
   }
}

function closeForm(id) {
   thisImage = document.getElementById('form_icon_' + id);
   thisDiv = document.getElementById('task_body_' + id);

   if (thisDiv) {
      thisDiv.style.display = "none";
      thisImage.src = "images/form_closed.gif";
   }
}

function hideCompletedTasks() {
   location.href = document.page.current.value + "&show_completed_tasks=0";
}

function showCompletedTasks() {
   location.href = document.page.current.value + "&show_completed_tasks=1";
}

function displayCompletedTasks(doThis) {
   if (doThis == "hide") {
      hideCompletedTasks();
   }
   else {
      showCompletedTasks();
   }
}

function increaseNotesHeight(thisTextarea, add) {
   if (thisTextarea) {
      newHeight = parseInt(thisTextarea.style.height) + add;
      thisTextarea.style.height = newHeight + "px";
   }
   if (document.getElementById('notes_height')) {
      document.getElementById('notes_height').value = newHeight;
   }
}

function decreaseNotesHeight(thisTextarea, subtract) {
   if (thisTextarea) {
      if ((parseInt(thisTextarea.style.height) - subtract) > 30) {
         newHeight = parseInt(thisTextarea.style.height) - subtract;
         thisTextarea.style.height = newHeight + "px";
      }
      else {
         newHeight = 30;
         thisTextarea.style.height = "30px";
      }
   }
   if (document.getElementById('notes_height')) {
      document.getElementById('notes_height').value = newHeight;
   }
}

function save() {
   if (document.edit) {
      document.edit.submit();
   }
   else {
      alert(nothingToSave);
   }
}

function verifyParentIsSet() {
   if (document.edit.task_parent.value == "") {
      alert(parentRequired);
      return false;
   }
}

function markComplete(taskId, screen, rootId) {
   reason = prompt(completePrompt, '');
   if (reason && reason != '') {
      location.href = 'index.php?screen=' + screen + '&id=' + taskId + '&root=' + rootId + '&action=complete&reason=' + escape(reason);
   }
   else {
      if (confirm(completeConfirm)) {
         location.href = 'index.php?screen=' + screen + '&id=' + taskId + '&root=' + rootId + '&action=complete';
      }
   }
}

function viewTask(taskId) {
   var mode = taskId.substring(0,4);
   taskId = parseInt(taskId.substring(4));
   if (taskId > 0) {
      if (mode == "view") {
         location.href = "index.php?screen=focus&root=" + taskId;
      }
      else {
         location.href = "index.php?screen=edit&id=" + taskId + "&root=" + taskId;
      }
   }
}

function position_corner() {
   cornerImg = document.getElementById('edit_form_corner');
   editForm = document.getElementById('edit_form_div');
   cornerImg.style.top = editForm.offsetHeight - cornerImg.offsetHeight - 1;
   cornerImg.style.left = editForm.offsetWidth - cornerImg.offsetWidth - 1;
   cornerImg.style.visibility = "visible";
}

function update_breadcrumbs() {
   /*
   if (document.edit.task_title.value.length > 25) {
      escapedString = document.edit.task_title.value.substr(0,25) + "...";
   }
   else {
      escapedString = document.edit.task_title.value;
   }
   escapedString = escapedString.replace('&',"&amp;");
   escapedString = escapedString.replace('"',"&quot;");
   escapedString = escapedString.replace('<',"&lt;");
   escapedString = escapedString.replace('>',"&gt;");
   document.getElementById('current_breadcrumb').innerHTML = escapedString;
   document.title = "tasks: " + escapedString;
   */
}

function duplicateTask() {
   if (document.edit.root.value == document.edit.task_id.value) {
      document.edit.root.value = "";
      document.edit.task_id.value = "";
   }
   else {
      document.edit.task_id.value = "";
   }
   document.edit.submit();
}

function confirmNav(nav) {
   if (document.edit && document.edit.changed) {
      if (document.edit.changed.value == 1) {
         if (confirm(abandonChanges)) {
            eval(nav);
         }
      }
      else {
         eval(nav);
      }
   }
   else {
      eval(nav);
   }
}

function setConfirmNav() {
   if (document.edit && document.edit.changed) {
      document.edit.changed.value = 1;
   }
}

function uRailLoad(loadTaskId) {
   parent.document.getElementById('task_children_' + loadTaskId).innerHTML = document.body.innerHTML;
}

function uRailToggleTreeNode(taskId, color, root, screen, show, completed) {
   var URL = "u_rail.php?id=" + taskId + "&color=" + color + "&show=" + show + "&root=" + root + "&screen=" + screen + "&show_completed_tasks=" + completed;
   if (document.getElementById('task_children_' + taskId).innerHTML == loadingText) {
      document.getElementById('uRail').src = URL;
// for some reason, using multiple iframes causes refresh problems
// the browser seems to forget that the client side expanded tree nodes
// have been expanded after it loads a second level branch.
// this is seen on IE and *zilla
// because of this, we have to allow only one train at a time on the underground railroad
//      document.getElementById('uRail').innerHTML = document.getElementById('uRail').innerHTML + '<iframe src="' + URL + '" height="1" width="1"></iframe>';
   }
   toggleTreeNode(taskId);
}

function annotate() {
   now = new Date;
   if (now.getMinutes() < 10) {
      var minutes = "0" + now.getMinutes();
   }
   else {
      var minutes = now.getMinutes();
   }
   if (now.getHours() < 10) {
      var hours = "0" + now.getHours();
   }
   else {
      var hours = now.getHours();
   }
   var add = "-----  " + dateFormat + " @ " + hours + ":" + minutes +
             "  ---------------------\n\n\n\n----------------------------------------------------\n\n";
   document.edit.task_notes.value = add + document.edit.task_notes.value;
   document.edit.task_notes.focus();
   if (document.edit.task_notes.selectionStart ||
       document.edit.task_notes.selectionStart == '0') {
      document.edit.task_notes.selectionStart = 50;
      document.edit.task_notes.selectionEnd = 50;
   }
}

function pickParent(taskId, target) {
   if (target == "edit") {
      window.opener.document.edit.task_parent.value = taskId;
      window.opener.setConfirmNav();
      window.close();
   }
   else if (target == "search") {
      window.opener.document.search.search_parent.value = taskId;
      window.close();
   }
}

function showPicker(type, date) {
// date is expected in YYYY-MM-DD format
   var URL;
   var stats;
   URL = "picker.php?type=" + type + "&date=" + date;

   if (type.indexOf("parent") != -1) {
      stats = "height=500, width=450, scrollbars=yes, toolbar=no, location=no, status=yes";
   }
   else if (type.indexOf("date") != -1) {
      stats = "height=565, width=315, scrollbars=yes, toolbar=no, location=no, status=yes";
   }
   else {
      stats = "height=500, width=500, scrollbars=yes, toolbar=no, location=no, status=yes";
   }
   window.open(URL, "picker", stats);
}

function pickDate(thisYear, thisMonth, thisDay, target) {
   if (target == "edit") {
      setSelectToValue(window.opener.document.edit.task_month, thisMonth);
      setSelectToValue(window.opener.document.edit.task_day, thisDay);
      setSelectToValue(window.opener.document.edit.task_year, thisYear);
      window.opener.setConfirmNav();
      window.close();
   }
   else if (target == "search_date_due") {
      setSelectToValue(window.opener.document.search.search_date_due_month, thisMonth);
      setSelectToValue(window.opener.document.search.search_date_due_day, thisDay);
      setSelectToValue(window.opener.document.search.search_date_due_year, thisYear);
      window.close();
   }
   else if (target == "search_date_due_before") {
      setSelectToValue(window.opener.document.search.search_date_due_before_month, thisMonth);
      setSelectToValue(window.opener.document.search.search_date_due_before_day, thisDay);
      setSelectToValue(window.opener.document.search.search_date_due_before_year, thisYear);
      window.close();
   }
   else if (target == "search_date_due_after") {
      setSelectToValue(window.opener.document.search.search_date_due_after_month, thisMonth);
      setSelectToValue(window.opener.document.search.search_date_due_after_day, thisDay);
      setSelectToValue(window.opener.document.search.search_date_due_after_year, thisYear);
      window.close();
   }
   else if (target == "search_date_modified") {
      setSelectToValue(window.opener.document.search.search_date_modified_month, thisMonth);
      setSelectToValue(window.opener.document.search.search_date_modified_day, thisDay);
      setSelectToValue(window.opener.document.search.search_date_modified_year, thisYear);
      window.close();
   }
   else if (target == "search_date_modified_before") {
      setSelectToValue(window.opener.document.search.search_date_modified_before_month, thisMonth);
      setSelectToValue(window.opener.document.search.search_date_modified_before_day, thisDay);
      setSelectToValue(window.opener.document.search.search_date_modified_before_year, thisYear);
      window.close();
   }
   else if (target == "search_date_modified_after") {
      setSelectToValue(window.opener.document.search.search_date_modified_after_month, thisMonth);
      setSelectToValue(window.opener.document.search.search_date_modified_after_day, thisDay);
      setSelectToValue(window.opener.document.search.search_date_modified_after_year, thisYear);
      window.close();
   }
}

function selectedDate(formName, prefix) {
   var selectedYear;
   var selectedMonth;
   var selectedDay;
   eval("selectedYear = document." + formName + "." + prefix + "_year.options[document." + formName + "." + prefix + "_year.selectedIndex].value;");
   eval("selectedMonth = document." + formName + "." + prefix + "_month.options[document." + formName + "." + prefix + "_month.selectedIndex].value;");
   eval("selectedDay = document." + formName + "." + prefix + "_day.options[document." + formName + "." + prefix + "_day.selectedIndex].value;");
   if ((selectedYear == "" || selectedMonth == "" || selectedDay == "") && (selectedYear != "" || selectedMonth != "" || selectedDay != "")) {
      return "";
   }
   else {
      return selectedYear + "-" + selectedMonth + "-" + selectedDay;
   }
}

function toggleGroupBackground(thisDiv, prefix) {
   var i;
   for (i = 0; document.getElementById(prefix + i); i++) {
      document.getElementById(prefix + i).className = "group";
   }
   thisDiv.className = "groupActive";
}

function validateSearchCriteria() {
   var errors = new Array();
   var day;
   var month;
   var year;
   var myString;


  /* myString = document.search.text_query.value;
   if (!(document.search.search_ID.value) !!
        (document.search.text_query.value.length > 0 && document.search.text_query.value.length)< 3) {
      errors[errors.length] = errSearchIdInvalid;
      return false;
   }*/
  /*
   if (document.search.search_ID.value && (isNaN(document.search.search_ID.value) || document.search.search_ID.value < 0)) {
      errors[errors.length] = errSearchIdInvalid;
   }
   if (document.search.search_parent.value && (isNaN(document.search.search_parent.value) || document.search.search_parent.value < 0)) {
      errors[errors.length] = errSearchParentInvalid;
   }
   if (document.search.search_status[0].value == "range" && document.search.search_status[0].checked == true) {
      if (document.search.search_status_more.value && (isNaN(document.search.search_status_more.value) || document.search.search_status_more.value > 100 || document.search.search_status_more.value < 0)) {
         errors[errors.length] = errSearchStatusMore;
      }
      if (document.search.search_status_less.value && (isNaN(document.search.search_status_less.value) || document.search.search_status_less.value > 100 || document.search.search_status_less.value < 0)) {
         errors[errors.length] = errSearchStatusLess;
      }
      if ((document.search.search_status_more.value && !isNaN(document.search.search_status_more.value)) && (document.search.search_status_less.value && !isNaN(document.search.search_status_less.value)) && document.search.search_status_more.value > document.search.search_status_less.value) {
         errors[errors.length] = errSearchStatusRange;
      }
   }
   else {
      if (document.search.search_status_exact.value && (isNaN(document.search.search_status_exact.value) || document.search.search_status_exact.value > 100 || document.search.search_status_exact.value < 0)) {
         errors[errors.length] = errSearchStatusExact;
      }
   }
   if (document.search.search_date_due[0].value == "range" && document.search.search_date_due[0].checked == true) {
      day = document.search.search_date_due_after_day[document.search.search_date_due_after_day.selectedIndex].value;
      month = document.search.search_date_due_after_month[document.search.search_date_due_after_month.selectedIndex].value;
      year = document.search.search_date_due_after_year[document.search.search_date_due_after_year.selectedIndex].value;
      if (day != "" || month != "" || year != "") {
         var validDateAfter = new Date(parseFloat(year), parseFloat(month)-1, parseFloat(day));
         if (validDateAfter.getDate() != day || validDateAfter.getMonth() != (month - 1) || validDateAfter.getFullYear() != year) {
            errors[errors.length] = errSearchDateAfter;
         }
      }
      day = document.search.search_date_due_before_day[document.search.search_date_due_before_day.selectedIndex].value;
      month = document.search.search_date_due_before_month[document.search.search_date_due_before_month.selectedIndex].value;
      year = document.search.search_date_due_before_year[document.search.search_date_due_before_year.selectedIndex].value;
      if (day != "" || month != "" || year != "") {
         var validDateBefore = new Date(parseFloat(year), parseFloat(month)-1, parseFloat(day));
         if (validDateBefore.getDate() != day || validDateBefore.getMonth() != (month - 1) || validDateBefore.getFullYear() != year) {
            errors[errors.length] = errSearchDateBefore;
         }
      }
      if (validDateAfter && validDateBefore && (validDateAfter >= validDateBefore)) {
         errors[errors.length] = errSearchDateRange;
      }
   }
   else {
      day = document.search.search_date_due_day[document.search.search_date_due_day.selectedIndex].value;
      month = document.search.search_date_due_month[document.search.search_date_due_month.selectedIndex].value;
      year = document.search.search_date_due_year[document.search.search_date_due_year.selectedIndex].value;
      if (day != "" || month != "" || year != "") {
         var exactDate = new Date(parseFloat(year), parseFloat(month)-1, parseFloat(day));
         if (exactDate.getDate() != day || exactDate.getMonth() != (month - 1) || exactDate.getFullYear() != year) {
            errors[errors.length] = errSearchDateExact;
         }
      }
   }

   if (errors.length > 0) {
      var errorString = errSearchErrors;
      for (i = 0; i < errors.length; i++) {
         errorString += errors[i] + "\n";
      }
      return errorString;
   }
   else {
      return true;
   }*/
}

function validateEditData() {
   var day = document.edit.task_day[document.edit.task_day.selectedIndex].value;
   var month = document.edit.task_month[document.edit.task_month.selectedIndex].value;
   var year = document.edit.task_year[document.edit.task_year.selectedIndex].value;
   if (day != "" || month != "" || year != "") {
      var editDate = new Date(parseFloat(year), parseFloat(month)-1, parseFloat(day));
// editDate = new Date(parseFloat(document.edit.task_year[document.edit.task_year.selectedIndex].value), parseFloat(document.edit.task_month[document.edit.task_month.selectedIndex].value)-1, parseFloat(document.edit.task_day[document.edit.task_day.selectedIndex].value));alert(editDate.getDate());
      if (editDate.getDate() != day || editDate.getMonth() != (month - 1) || editDate.getFullYear() != year) {
         return errEditDate;
      }
      else {
         return true;
      }
   }
   else {
      return true;
   }
}

function b2Post(URL) {
   URL += "?task_title=" + escape(document.edit.task_title.value) + "&task_notes=" + escape(document.edit.task_notes.value);
   setSelectToValue(document.edit.task_status, '100');
   window.open(URL, 'b2_post', 'height=550, width=500, scrollbars=yes, toolbar=no, location=no, status=yes');
}

function WPPost(URL) {
   URL += "?post_title=" + escape(document.edit.task_title.value) + "&content=" + escape(document.edit.task_notes.value);
   setSelectToValue(document.edit.task_status, '100');
   window.open(URL, 'WP_post', 'height=550, width=500, scrollbars=yes, toolbar=no, location=no, status=yes');
}

function MTPost(URL) {
   URL += "?is_bm=1&bm_show=allow_comments,convert_breaks,category,keywords,excerpt,text_more&__mode=view&_type=entry&link_title=&link_href=&title=" + escape(document.edit.task_title.value) + "&text=" + escape(document.edit.task_notes.value);
   setSelectToValue(document.edit.task_status, '100');
   window.open(URL, 'mt_post', 'height=550, width=500, scrollbars=yes, toolbar=no, location=no, status=yes');
}

function toggleFormattingToolbar() {
   if (document.getElementById('format_toolbar') && document.getElementById('formatting_toolbar')) {
      if (document.getElementById('format_toolbar').style.display == "block") {
         document.getElementById('formatting_toolbar').value = 1;
      }
      else {
         document.getElementById('formatting_toolbar').value = 0;
      }
   }
}

function sortRootTasks(order) {
   location.href = 'index.php?home_sort_order=' + order;
}


function save99() {
  /*myString = document.maintable.item_type.value;*/
  //alert("\nForm has been filled out correctly.");
  /* alert("myString");*/

   document.edit.submit();
   /*if (document.edit) {
      document.edit.submit();
   }
   else {
      alert(nothingToSave);
   } */
}