radio button checked when second time clicked

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C#

ASP.NET

XSLT

When i click on radio button it checked at second time.
first i am not getting any response.

Here i used 3 radio button for first two i can get checked at first time. for last radio button checked working at second time clicked.

<p class="float-left">
                               <label>
                                 <input type="radio" class="classblouse" id="rbtn{$blouseId}" name="blouseGroup" value="{$blouseId}">
                                   <xsl:value-of select="PrdDesc"/>
                                 </input>
                                 <xsl:if test="PrdCost=0">
                                   <span>
                                     FREE
                                   </span>

                                 </xsl:if>
                                 <xsl:if test="PrdCost>0">
                                   <span>
                                     &#160;
                                     <xsl:choose>
                                       <xsl:when test="//PrdDtls/PrdCurrType='INR'">
                                         INR <span class="WebRupee">Rs.</span>
                                       </xsl:when>
                                       <xsl:otherwise>
                                         <xsl:value-of select="//PrdDtls/PrdCurrType"/>&#160;<xsl:value-of select="//PrdDtls/PrdCurrSymbol"/>
                                       </xsl:otherwise>
                                     </xsl:choose>
                                     <xsl:value-of select="PrdCost"/>.00
                                   </span>
                                 </xsl:if>
                               </label>
                             </p

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