854 var catHTMLBuf = false;

   855 

   856 function ajaxCatToTag()

   857 {

   858   if ( KILL_SWITCH )

   859     return false;

   860   setAjaxLoading();

   861   ajaxGet(stdAjaxPrefix + '&_mode=get_tags', function()

   862     {

   863       if ( ajax.readyState == 4 )

   864       {

   865         unsetAjaxLoading();

   866         var resptext = String(ajax.responseText + ' ');

   867         resptext = resptext.substr(0, resptext.length-1);

   868         if ( resptext.substr(0, 1) != '{' )

   869         {

   870           alert('Invalid JSON response from server:\n' + resptext);

   871           return false;

   872         }

   873         var json = parseJSON(resptext);

   874         var catbox = document.getElementById('mdgCatBox');

   875         if ( !catbox )

   876           return false;

   877         var linkbox = catbox.parentNode.firstChild.firstChild.nextSibling;

   878         linkbox.firstChild.nodeValue = 'show page categorization';

   879         linkbox.onclick = function() { ajaxTagToCat(); return false; };

   880         catHTMLBuf = catbox.innerHTML;

   881         catbox.innerHTML = '';

   882         catbox.appendChild(document.createTextNode('Page tags: '));

   883         if ( json.tags.length < 1 )

   884         {

   885           catbox.appendChild(document.createTextNode('No tags on this page'));

   886         }

   887         for ( var i = 0; i < json.tags.length; i++ )

   888         {

   889           catbox.appendChild(document.createTextNode(json.tags[i].name));

   890           if ( json.tags[i].can_del )

   891           {

   892             catbox.appendChild(document.createTextNode(' '));

   893             var a = document.createElement('a');

   894             a.appendChild(document.createTextNode('[X]'));

   895             a.href = '#';

   896             a.onclick = function() { return false; }

   897             catbox.appendChild(a);

   898           }

   899           if ( ( i + 1 ) < json.tags.length )

   900             catbox.appendChild(document.createTextNode(', '));

   901         }

   902         if ( json.can_add )

   903         {

   904           catbox.appendChild(document.createTextNode(' '));

   905           var addlink = document.createElement('a');

   906           addlink.href = '#';

   907           addlink.onclick = function() { try { ajaxAddTagStage1(); } catch(e) { }; return false; };

   908           addlink.appendChild(document.createTextNode('(add a tag)'));

   909           catbox.appendChild(addlink);

   910         }

   911       }

   912     });

   913 }

   914 

   915 function ajaxAddTagStage1()

   916 {

   917   var catbox = document.getElementById('mdgCatBox');

   918   var adddiv = document.createElement('div');

   919   var text = document.createElement('input');

   920   var addlink = document.createElement('a');

   921   addlink.href = '#';

   922   addlink.onclick = function() { return false; };

   923   addlink.appendChild(document.createTextNode('+ Add'));

   924   text.type = 'text';

   925   text.size = '15';

   926   

   927   adddiv.style.margin = '5px 0 0 0';

   928   adddiv.appendChild(document.createTextNode('Add a tag: '));

   929   adddiv.appendChild(text);

   930   adddiv.appendChild(document.createTextNode(' '));

   931   adddiv.appendChild(addlink);

   932   catbox.appendChild(adddiv);

   933 }

   934 

   935 function ajaxTagToCat()

   936 {

   937   if ( !catHTMLBuf )

   938     return false;

   939   var catbox = document.getElementById('mdgCatBox');

   940   if ( !catbox )

   941     return false;

   942   var linkbox = catbox.parentNode.firstChild.firstChild.nextSibling;

   943   linkbox.firstChild.nodeValue = 'show page tags';

   944   linkbox.onclick = function() { ajaxCatToTag(); return false; };

   945   catbox.innerHTML = catHTMLBuf;

   946   catHTMLBuf = false;

   947 }

   948