Retriving posted values

Hi all,

I have been bugging the issue for past 6 days but no luck so finally posting here.

I have a form where i have placed the textarea, once i click on the submit button the form is submitted.
iam doing a serverside validation for the posted values, if all the data is correct then iam ineserting teh values into Db, else Iam showing the error messages.
ISSUE : If the error occurs the values enterered previously is not been shown in the textarea.

Below mentioned is the code.

<script type="text/javascript">
   var ableToDisplayHtmlEditor = true;
   function FCKeditor_OnComplete( editorInstance ) {
      var format = document.mainform.plate_format.value;
      var editor = FCKeditorAPI.GetInstance('plateTEXT_html');
      if (format=="text/html" && ableToDisplayHtmlEditor == true) {
         document.getElementById('div_plateTEXT_text').style.display = 'none';
         document.getElementById('div_plateTEXT_html').style.display = 'block';
         var text = document.mainform.plateTEXT_text.value; //.replace(/\\n/g,"<br/>");
         editor.EditorDocument.body.innerHTML = text;
         alert("text... :" + text);
         if(!document.all) editor.MakeEditable();         
      } else {
         document.getElementById('div_plateTEXT_text').style.display = 'block';
         document.getElementById('div_plateTEXT_html').style.display = 'none';         
      }
      }

   function displayFCKEditor (focus) {
      var format = document.mainform.plate_format.value;
      var editor = FCKeditorAPI.GetInstance('plateTEXT_html');
      if (format=="text/html" && ableToDisplayHtmlEditor == true) {
         document.getElementById('div_plateTEXT_text').style.display = 'none';
         document.getElementById('div_plateTEXT_html').style.display = 'block';
         var text = document.mainform.plateTEXT_text.value; //.replace(/\\n/g,"<br/>");
         editor.EditorDocument.body.innerHTML = text;
         if(!document.all) editor.MakeEditable();
         if (focus == 'true') editor.Focus();
      } else {
         document.getElementById('div_plateTEXT_text').style.display = 'block';
         document.getElementById('div_plateTEXT_html').style.display = 'none';
         document.mainform.plateTEXT_text.value = editor.EditorDocument.body.innerHTML; //.replace(/<br>|<br\\s*>/gi,"\\n").replace(/&nbsp;/gi," ");
         if (focus == 'true') document.mainform.plateTEXT_text.focus();
      }
   }
</script>
EOM;
$IPX2 = "<SELECT name=\"plate_format\" class=\"body\" onChange=\"javascript:displayFCKEditor('true');\">\n";
$IPX2 .= "<option value=\"text/plain\" ".($plate_format == 'text/plain' ? "SELECTED" : "")." >Plain Text</option>\n";
$IPX2 .= "<option value=\"text/html\" ".($plate_format == 'text/html' ? "SELECTED" : "").">HTML</option>\n";
$IPX2 .= "</SELECT>";
$PLATE_DATA .= <<<EOM
<TR BGCOLOR="#eeeeee">
<TD COLSPAN=2 CLASS=body VALIGN=TOP><b>Email Format:</b> ${IPX2}</TD>
</TR>
         <TR BGCOLOR="#eeeeee">
            <TD COLSPAN=2 CLASS=body VALIGN=TOP>
            ${IPX}
            <script type="text/javascript" src="FCKeditor/fckeditor.js"></script>
            <script type="text/javascript">
            try{
               var oFCKeditor = new FCKeditor( 'plateTEXT_html' ) ;
               oFCKeditor.BasePath = "FCKeditor/" ;
               oFCKeditor.ToolbarSet = 'MY Template' ;
               oFCKeditor.Width = "100%" ; 
               oFCKeditor.Height = 400 ; // 400 pixels
               oFCKeditor.ReplaceTextarea() ;
            } catch (e) {
               alert("Failed to create HTML Editor. Only Plain Text available. Error name: " + e.name 
               + ". Error message: " + e.message); 
               ableToDisplayHtmlEditor = false;
               if(document.mainform.plate_format.options[1]) {
                  document.mainform.plate_format.options[1]=null;
               }
            }
            </script>
            </DIV>
            </TD>
            </TR>

Thanks for your time....

Best wishes