JSP not loading for this scriptlet

Hi,
My JSP is working with this code.

Code:

 <ul class="buttons-1">
        <% ResultData navBut = new ResultData( ui.navButtons );
          navBut.beforeFirst();
           while( ! navBut.isLast()) {
            navBut.next();
             if ("LEFT".equals(navBut.getString("ALIGN"))) {
             String resKey = navBut.getString("NAME");
             String resKeyTitle = navBut.getString("TITLE");
             String elemID = ( (navBut.getString("ID") != null && navBut.getString("ID").length() > 0) ? ("id=\"" + navBut.getString("ID") + "\"") : "");
             String LIelemID = ( (navBut.getString("ID") != null && navBut.getString("ID").length() > 0) ? ("id=\"LI" + navBut.getString("ID") + "\"") : "");
             String elemDIS = ("true".equals(navBut.getString("DISABLED")) ? "class=\"disabled\"" : "");
    <a href="<%= navBut.getString("HREF")%>" <%=elemID%> onclick="<%= navBut.getString("ONCLICK")%>" title="<isa:translate key="<%= resKeyTitle %>"/> 
    <% if (ui.isAccessible) { %><isa:translate key="ecm.acc.button"/><% } %>">
        <isa:translate key="<%= resKey %>"/>
                            </a>
                            </li>
                     <%  } 
        		%>
                <% } %>
              </ul>

I have modified like this to access custom javascript function. But the JSP is not loading after this. I don't understand what wrong in this.

Code:

<ul class="buttons-1">
            <% ResultData navBut = new ResultData( ui.navButtons );
            navBut.beforeFirst();
            while( ! navBut.isLast()) {
                navBut.next();
                if ("LEFT".equals(navBut.getString("ALIGN"))) {
                    String resKey = navBut.getString("NAME");
                    String resKeyTitle = navBut.getString("TITLE");
                    String elemID = ( (navBut.getString("ID") != null && navBut.getString("ID").length() > 0) ? ("id=\"" + navBut.getString("ID") + "\"") : "");
                    String LIelemID = ( (navBut.getString("ID") != null && navBut.getString("ID").length() > 0) ? ("id=\"LI" + navBut.getString("ID") + "\"") : "");
                    String elemDIS = ("true".equals(navBut.getString("DISABLED")) ? "class=\"disabled\"" : "");
                // My change  
                String clkFnc = "";
                String size = (String)request.getAttribute(WorkareaNavAction.RK_MB_ITEMSIZE); 
                if (LIelemID.equals("LItransferbutton") && size!=null && !(size.equals("-1")&& !(size.equals("0")) )
                    {
                        clkFnc = "ztransferToBasket()";
                    }
                    else
                    clkFnc = navBut.getString("ONCLICK");

                 %>
                    <li <%=LIelemID%> <%=elemDIS%>>
            <%--  Commented by Siva to change onclick proerty
             <a href="<%= navBut.getString("HREF")%>" <%=elemID%>  onclick="<%= navBut.getString("ONCLICK")%>" title="<isa:translate key="<%= resKeyTitle %>"/> <% if (ui.isAccessible) { %><isa:translate key="ecm.acc.button"/><% } %>"> --%>
                  <a href="<%= navBut.getString("HREF")%>" <%=elemID%>  onclick="<%=clkFnc%>" title="<isa:translate key="<%= resKeyTitle %>"/>
 <% if (ui.isAccessible) { %><isa:translate key="ecm.acc.button"/><% } %>"> 
                    <isa:translate key="<%= resKey %>"/>
                    </a>
                    </li>

            <%  } //end of change
            %>
        <% } %>
      </ul>

I am working in NWDS (SAP java IDE).
Can you please help me on this?