How to get the value from a valuelist in XSLT -

i'm creating web page has dropdown list , button. page updates value of original dropdown new selected one.

so have declared template this:

<xsl:template name="custtype">     <xsl:param name="custtypelbl" select="$lang.custtypelbl"/>     <xsl:param name="valuelist"/>     <xsl:param name="disable" select="'false'"/>     <xsl:param name="controlname" select="'customertype'"/>     <xsl:param name="onchange" select="''"/>          <xsl:call-template name="selectbox">               <xsl:with-param name="selectboxlabel" select="$custtypelbl"/>               <xsl:with-param name="controlname" select="$controlname"/>               <xsl:with-param name="disable" select="$disable"/>               <xsl:with-param name="valuelist" select="$valuelist"/>               <xsl:with-param name="onchange" select="$onchange"/>               <xsl:with-param name="valuecolspan" select="''"/>         </xsl:call-template> </xsl:template> 

and here content of dropdown:

<xsl:template name="customertypelist"> <xsl:param name="selectedcusttype"/>      <xsl:call-template name="optionelement">         <xsl:with-param name="optionvalue" select="'m'"/>         <xsl:with-param name="optiondescription" select="$lang.opt.customertype.member"/>         <xsl:with-param name="selectedoptionvalue" select="$selectedcusttype"/>     </xsl:call-template>      <xsl:call-template name="optionelement">         <xsl:with-param name="optionvalue" select="'e'"/>         <xsl:with-param name="optiondescription" select="$lang.opt.customertype.employee"/>         <xsl:with-param name="selectedoptionvalue" select="$selectedcusttype"/>     </xsl:call-template>      <xsl:call-template name="optionelement">         <xsl:with-param name="optionvalue" select="'n'"/>         <xsl:with-param name="optiondescription" select="$lang.opt.customertype.nonmember"/>         <xsl:with-param name="selectedoptionvalue" select="$selectedcusttype"/>     </xsl:call-template>              <xsl:call-template name="optionelement">         <xsl:with-param name="optionvalue" select="'r'"/>         <xsl:with-param name="optiondescription" select="$lang.opt.customertype.returncenter"/>         <xsl:with-param name="selectedoptionvalue" select="$selectedcusttype"/>     </xsl:call-template>               </xsl:template> 

then call/display dropdown in page this:

                <xsl:call-template name="custtype">                     <xsl:with-param name="customertype" select="$customertype"/>                     <xsl:with-param name="valuelist">                         <xsl:call-template name="customertypelist">                             <xsl:with-param name="selectedcusttype" select="$customertype"/>                         </xsl:call-template>                     </xsl:with-param>                 </xsl:call-template> 

then when click button, pass these parameters:

<form name="{$customerdetailsform}" action="{$formaction}" method="post" onsubmit="{$formonsubmit}">         <input type="hidden" name="groupid" value="{$groupid}"/>         <input type="hidden" name="selectedcusttype" value="{$customertype}"/>         <input type="hidden" name="namechangecode" value=""/>         <input type="hidden" name="statusinfots" value="{$customerinfonode/status/@timestamp}"></input>         <input type="hidden" name="loyaltyidpanelflag" value="hidden"/>         <input type="hidden" name="accessscreen" value="{$accessscreen}"/>         <xsl:call-template name="datalayout"/>     </form> 

my problem not selected value of customertype (example: "m" member, "n" non-member, "e" employee). gets still same old value. (my "no data changed" error handler triggered)

i had lot of research dropdown in xslt, of them uses for-each didn't help. i'm beginner in language, i'm analyzing code , tweaking bit enhancement, , i'm not yet familiar these syntax.

my question is, "how using existing codes?" , appreciate if attach link / explain bit can learn more it. thank much.

if using xslt 1.0 engine built in browser, can generate html page, potentially containing javascript. once html page generated (and therefore, @ time user clicks button) xslt has done work , no longer executing: way handle user input events within javascript of html page.

this changes if use saxon-js, allows write code within xslt stylesheet responds user input events , modifies html page. can read saxon-js @ http://www.saxonica.com/saxon-js/index.xml