Add a HTML\Java Script Gadget and copy paste the below code.
Thanks to:Blogger-Toolkit I have added more language options to the existing code.
<img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjOftAzKf-hqtlnGrn6EnNOF-fQmyPmP_NdyHnmLCNMh_EOg_rJ-YG-7IZHvV3qjPEghb15NOw76BWzDcygFvzALNlt1zL2S6d4iyUc78jujeUIkxEC_rZFwj7f78riFnq3P7EyXD_tphD4/s800/China.jpg" alt="中文(简体)/Chinese Simplified" height="10" width="20" onClick="javascript:window.location='http://www.google.com/translate_c?hl=en&langpair=en%7Czh-CN&u=' + window.location.href;"></img>
<img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgwejECTYMuJFtza45ET5WKfmia3nCZIGyKLNVS_iOxCMhtD4E2drswKeoibMvx4YYK1Zkl9t7lY_BFn-cf5UdItUy24BCpW10Weq6DCza50OpVzmHVD7la5ujJWOfJMLrvOa_r0C9vcCr1/s800/French.jpg" alt="Français/French" height="10" width="20" onClick="javascript:window.location='http://www.google.com/translate_c?hl=en&langpair=en%7Cfr&u=' + window.location.href;"></img>
<img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjeUYkky9q1-tv3htbgXNqe0emjV4CLGNGL_dnB_71SI-Ee2S6OpMS22twW1KnlplOx-IWXvep6nEJWxZNjaZTwNcCIsIHHJH4wTahTkJBwbAPnk8Xb6YfZNg97RUJZZETw7l-YP2b3sbeX/s800/German.jpg" alt="Deutsch/German" height="10" width="20" onClick="javascript:window.location='http://www.google.com/translate_c?hl=en&langpair=en%7Cde&u=' + window.location.href;"></img>
<img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjV9a4EvwH3Lw91NGr0P-Rcs_-LTQVGRjkGcPb8b-vh7COipZBcj5SsbEDCJlmDBP_m3dx95b3u0xfOtBQBbgw657aTjkXnJaJzINbQvIjW7XBDGPKVLcAxV3-bF8R_KHCdcOD2iUUsTjE3/s800/Italian.jpg" alt="Italiano/Italian" height="10" width="20" onClick="javascript:window.location='http://www.google.com/translate_c?hl=en&langpair=en%7Cit&u=' + window.location.href;"></img>
<img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg6kRDJ1rimUuxgWnL_aj_YLdG3yLhGfnV-3UjyTdCnmsWXmZl3-ex6HbuCpqZ0Tko73rwLw-yDoM5qvU1dP7UuD_hSxVR97Ct7gD_64lVKNuUEaOLoc4Jbp_N4SZaqTf7DGivyKD3_kDzx/s800/Portugal.jpg" alt="Português/Portuguese" height="10" width="20" onClick="javascript:window.location='http://www.google.com/translate_c?hl=en&langpair=en%7Cpt&u=' + window.location.href;"></img>
<img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiCV7NUvfH3QVDaTYVBe5LMXicdDtFWR3esgPK6Dbcl7NZ_FJAJ5aI6JqbOHAzfGHrhMOPBGLz4f4VY6NCDOhdO6rU5xfwBV9DupVwH8J9H8Vg9rzJXYuu0c_L3cCNGHf6DL-j2SQhQ-z8C/s800/Spanish.jpg" alt="Español/Spanish" height="10" width="20" onClick="javascript:window.location='http://www.google.com/translate_c?hl=en&langpair=en%7Ces&u=' + window.location.href;"></img>
<img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjAAmytXiOTTbeHEa6S2bOKCO1u62de4VUqlPVSskrGMImodevMpAeKul8DWDsjPkdiV1G-FBMFw4VGXxUurTar9hyphenhyphen0byPiJ_ovVMY7na8qbRMMAOlPjcRUdH-oLH68u96FsGQ2ektrZ5Ri/s800/Japan.jpg" alt="日本語/Japanese" height="10" width="20" onClick="javascript:window.location='http://www.google.com/translate_c?hl=en&langpair=en%7Cja&u=' + window.location.href;"></img>
<img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgoXx5vDCuim0zH82KMh-nV0dfw2jaqfexNPr7dSSUu5WkztGgwYiTdih11P4EEVVgYWyXXwJcXevDUBCLeONKNT1fu0wSAsPhQVZGxBmuIXsGZfbQBURzEDC4eDqVs7GkijvuPualeCrRT/s800/Korea.jpg" alt="한국어/Korean" height="10" width="20" onClick="javascript:window.location='http://www.google.com/translate_c?hl=en&langpair=en%7Cko&u=' + window.location.href;"></img>
<form action="http://www.google.com/translate" onsubmit="this.u.value=window.location.href" method="GET">
<input value="en" name="hl" type="hidden"/>
<input value="UTF8" name="ie" type="hidden"/>
<input value="" name="u" type="hidden"/>
Select Language: <select name="langpair">
<option value="en|de">deutsch</option>
<option value="en|pt">português</option>
<option value="en|fr">français</option>
<option value="en|ja">日本語</option>
<option value="en|ar">عَرَبيْ</option>
<option value="en|it">italiano</option>
<option value="en|ru">pусский</option>
<option value="en|po">polski</option>
<option value="en|zh-CN">中文</option>
<option value="en|es">español</option>
<option value="en|ko">Korean</option>
<option value="en|nl">nederlands</option>
<option value="en|hi">हिन्दी </option>
<option value="en|el">Ελληνική</option>
<option value="en|ro">română</option>
<option value='en|bg'>Bulgarian</option>
<option value='en|ca'>català</option>
<option value='en|zh-TW'>Chinese (Tradtional)</option>
<option value='en|hr'>Croatian</option>
<option value='en|cs'>Czech</option>
<option value='en|da'>Danish</option>
<option value='en|tl'>Filipino</option>
<option value='en|fi'>Finnish</option>
<option value='en|iw'>Hebrew</option>
<option value='en|id'>Indonesian</option>
<option value='en|lv'>Latvian</option>
<option value='en|lt'>Lithuanian</option>
<option value='en|no'>Norwegian</option>
<option value='en|pl'>Polish</option>
<option value='en|ro'>Romanian</option>
<option value='en|sr'>Serbian</option>
<option value='en|sk'>Slovak</option>
<option value='en|sl'>Slovenian</option>
<option value='en|sv'>Swedish</option>
<option value='en|uk'>Ukrainian</option>
<option value='en|vi'>Vietnamese</option>
</select><br/>
<input value="Translate" type="submit"/>
</form>
The Output will look like the "Translate This page" on the right hand column of my blog.
Hope this helps.