The name divcity does not exist in the current context

Try this

document.getElementById('divcity').style.display="block";}

 if(a=="CITY")                        {             document.getElementById('divcity').style.display="block";             }             else          {           document.getElementById('divcity').style.display="none";           }

i get error in else

if i remove else & exceute the ('divcity') is not visible

Paste the DIV HTML here

and use Code button to add code so that it is readable

 <div id="divcity" style="position: absolute; z-index: 105; display: inline; left: 0px; height:100px;">
                                <asp:ListBox ID="drpcity" runat="server" Height="252px" SelectionMode="Multiple"
                 Width="141px"></asp:ListBox>
                    </div>

simiarly i have multiple such controls

so when a column header cell is clicked i get the name of the column field

so if its city

i need

divcity.visible = true else false

same way for other controls

What error do you get in else?