jquery simulation can input drop-down box

Page HTML<div id="Select" class="select" >                              <ul>                                <c:foreach Items="${moviecitylist}" var="cy"  Varstatus="St">                                    <li>                                        <a href="javascript:void (0)" onclick="Selectoption ($ (this))" >${cy.cityname}</a>                                        <input style="Display:none;" name="Citycode" id="Citycode${st.count}" value="${ Cy.vascityid} "/>                                    </li>                                </C:foreach>                              </ul>                            </div>

jquery Code<script type="Text/javascript">            //City drop-down box function             function getData(){//Get all City data                varData=New Array(); $(". Select a"). each ( function(i){data[i]=$ ( This). HTML (); });returnData } function judgelength(l){//Show drop-down box height based on results                if(l>5){                    $(". Select"). CSS ("Height","100px"); }Else{                    $(". Select"). CSS ("Height", l* -+"px"); }            } function selectoption(obj){//Selected$("#cityName"). Val (obj.html ()); $("#cityId"). Val (Obj.next ("Input"). Val ()); $(". Select"). Hide ();            Loadcinemalname (); } function onfocus(){//input Tag Get focus                varL=getdata (). length;if($(' #cityName '). val () = ="') {judgelength (L); $(". Select"). Show (); }Else{varobj=$ ("#cityName");                OnKeyUp (obj); }            } function onKeyUp(obj){//input KeyUp Events                varInput=obj.val () +"'; $(". Select Li"). Hide ();varheight=0;varData=getdata ();varL=getdata (). length;if(input!="'){//Input dynamically retrieves the presence of the entered city                     for(varI=0; i<data.length;i++) {varstr=data[i]+"";if(Str.indexof (Input)!=-1) {height++;                            Judgelength (height); $(". Select"). Show (); $(". Select Li:eq ("+i+")"). Show ();varcityid=$ (". Select Li:eq ("+i+") input"). Val (); $("#cityId"). Val (Cityid);                }} loadcinemalname (); }Else{judgelength (L); $(". Select Li"). Show (); }            } function onBlur(e){//Hide drop-down box when losing focusalert (e.target);//$ (". Select"). Hide ();}</script>

jquery simulation can input drop-down box