/* 
------------------------------------------
     Flipbox written by CrappoMan
     simonpatterson@dsl.pipex.com
------------------------------------------
*/
function flipBox(who) {
     var tmp; 
     if (document.images['b_' + who].src.indexOf('_on') == -1) { 
          tmp = document.images['b_' + who].src.replace('_off', '_on');
          document.getElementById('box_' + who).style.display = 'none';
          document.images['b_' + who].src = tmp;
     } else { 
          tmp = document.images['b_' + who].src.replace('_on', '_off');
          document.getElementById('box_' + who).style.display = 'block';
          document.images['b_' + who].src = tmp;
     } 
}

function addText(elname, wrap1, wrap2) {
     if (document.selection) { // for IE 
          var str = document.selection.createRange().text;
          document.forms['inputform'].elements[elname].focus();
          var sel = document.selection.createRange();
          sel.text = wrap1 + str + wrap2;
          return;
     } else if ((typeof document.forms['inputform'].elements[elname].selectionStart) != 'undefined') { // for Mozilla
          var txtarea = document.forms['inputform'].elements[elname];
          var selLength = txtarea.textLength;
          var selStart = txtarea.selectionStart;
          var selEnd = txtarea.selectionEnd;
          var oldScrollTop = txtarea.scrollTop;
          //if (selEnd == 1 || selEnd == 2)
          //selEnd = selLength;
          var s1 = (txtarea.value).substring(0,selStart);
          var s2 = (txtarea.value).substring(selStart, selEnd)
          var s3 = (txtarea.value).substring(selEnd, selLength);
          txtarea.value = s1 + wrap1 + s2 + wrap2 + s3;
          txtarea.selectionStart = s1.length;
          txtarea.selectionEnd = s1.length + s2.length + wrap1.length + wrap2.length;
          txtarea.scrollTop = oldScrollTop;
          txtarea.focus();
          return;
     } else {
          insertText(elname, wrap1 + wrap2);
     }
}

function insertText(elname, what) {
     if (document.forms['inputform'].elements[elname].createTextRange) {
          document.forms['inputform'].elements[elname].focus();
          document.selection.createRange().duplicate().text = what;
     } else if ((typeof document.forms['inputform'].elements[elname].selectionStart) != 'undefined') { // for Mozilla
          var tarea = document.forms['inputform'].elements[elname];
          var selEnd = tarea.selectionEnd;
          var txtLen = tarea.value.length;
          var txtbefore = tarea.value.substring(0,selEnd);
          var txtafter =  tarea.value.substring(selEnd, txtLen);
          var oldScrollTop = tarea.scrollTop;
          tarea.value = txtbefore + what + txtafter;
          tarea.selectionStart = txtbefore.length + what.length;
          tarea.selectionEnd = txtbefore.length + what.length;
          tarea.scrollTop = oldScrollTop;
          tarea.focus();
     } else {
          document.forms['inputform'].elements[elname].value += what;
          document.forms['inputform'].elements[elname].focus();
     }
}

function show_hide(msg_id) {
     msg_id.style.display = msg_id.style.display == 'none' ? 'block' : 'none';
}