Tinymce Editor displaying html tags after saving and reloading the data inside updatepanel

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Javascript

When First time load the data is display in perfect,but after i have changed some style and save data.Again i show data then display html tags i.e, <strong>A<strong>


My full tinymce editor code

function initTextArea() {
tinyMCE.init({
mode: "exact",
theme: "advanced",
forced_root_block: false, // Start tinyMCE without any paragraph tag
encoding: "xml",
elements: '<%=txtEmail.ClientID %>',
editor_selector: "tinyMCE",

// plugins: "spellchecker,autolink,lists,pagebreak,style,layer,table,save,advhr,advimage,advlink,emotions,iespell,inlinepopups,insertdatetime,preview,media,searchreplace,print,contextmenu,paste,directionality,fullscreen,noneditable,visualchars,nonbreaking,xhtmlxtras,template,wordcount,advlist,autosave",

plugins: "paste",
paste_text_sticky: true,
setup: function(ed) {
ed.onInit.add(function(ed) {
ed.pasteAsPlainText = true;
});
},


theme_advanced_buttons1: "cut,copy,paste,|,undo,redo,|,bold,italic,underline,|,justifyleft,justifycenter,justifyright,justifyfull,|,bullist,numlist,|,outdent,indent",
theme_advanced_buttons2: "forecolor,backcolor,fontselect,fontsizeselect,|,search,replace",
theme_advanced_buttons3: "",
theme_advanced_toolbar_location: "top",
theme_advanced_toolbar_align: "left",
theme_advanced_statusbar_location: "none",
spellchecker_languages: "English=en",

// Example content CSS (should be your site CSS)
content_css: "../../../Farvision.Common/script/tiny_mce/themes/advanced/skins/default/content.css",

// Drop lists for link/image/media/template dialogs
template_external_list_url: "lists/template_list.js",
external_link_list_url: "lists/link_list.js",
external_image_list_url: "lists/image_list.js",
media_external_list_url: "lists/media_list.js",

// Style formats
style_formats: [
{ title: 'Bold text', inline: 'b' },
{ title: 'Red text', inline: 'span', styles: { color: '#ff0000'} },
{ title: 'Red header', block: 'h1', styles: { color: '#ff0000'} },
{ title: 'Example 1', inline: 'span', classes: 'example1' },
{ title: 'Example 2', inline: 'span', classes: 'example2' },
{ title: 'Table styles' },
{ title: 'Table row 1', selector: 'tr', classes: 'tablerow1' }
],

// Replace values for the template plugin
template_replace_values: {
username: "Some User",
staffid: "991234"
}

});
}
initTextArea();

function fnExit() {
var redirectURL = '<%= Convert.ToString(Session["PageToRedirect"]) %>';
if (redirectURL == undefined || redirectURL == '')
redirectURL = '../../Farvision.Common/Common/Forms/R2_frmHome.aspx';
location.href = redirectURL;
return false;
}

var prm = Sys.WebForms.PageRequestManager.getInstance();
prm.add_initializeRequest(InitializeRequest);
prm.add_endRequest(EndRequest);
var postBackElement;
function InitializeRequest(sender, args) {
if (prm.get_isInAsyncPostBack())
args.set_cancel(true);
postBackElement = args.get_postBackElement();
tinyMCE.execCommand('mceRemoveControl', false, '<%=txtEmail.ClientID %>');
}

function EndRequest(sender, args) {
initTextArea();
tinyMCE.idCounter = 0;

// replace textareaId by the id of your textarea
tinyMCE.execCommand('mceFocus', false, '<%=txtEmail.ClientID %>');
tinyMCE.execCommand('mceAddControl', false, '<%=txtEmail.ClientID %>');
}

function UpdateTextArea() {
tinyMCE.triggerSave(false, true);
}

var tdEmailID = '';

function SetEmailDiv() {
tdEmailID.find("[id*='hdnEmailCon']").val(escape(tinyMCE.activeEditor.getContent()));
var radCmbBox = $find('<%=cmbEmailType.ClientID %>');
tdEmailID.find("[id*='hdnEmailType']").val(radCmbBox.get_text());
document.getElementById("divEmailContent").style.display = "none";
}

function openEmailDiv() {
var pdiv = document.getElementById("divEmailContent");
pdiv.style.display = "inline";
pdiv.style.top = (parseInt(document.body.clientHeight) - parseInt(pdiv.style.height)) / 2 + 'px';
pdiv.style.left = (parseInt(document.body.clientWidth) - parseInt(pdiv.style.width)) / 2 + 'px';
return false;
}

function OnEmailEdit() {
var tr = $(this).closest("tr");
tdEmailID = tr;
tinyMCE.activeEditor.setContent(unescape(tr.find("[id*='hdnEmailCon']").val()));
var radComboBox = $find('<%=cmbEmailType.ClientID %>');
var item = radComboBox.findItemByText(tr.find("[id*='hdnEmailType']").val());
item.select();

return openEmailDiv();
}


here i think escape and unescape function is not working properly