javascript - OnClick is not working when i do OnClientClick="function(); return false" -

i have 5 asp:buttons want change css class on when click them "marked". javascript , works fine. want store variable in code behind onclick.

my problem is, when click asp:button refresh page. solved ;return false after onclientclick. when have return false, buttons onclick doesnt fire. need getting these both things work @ same time:

• page not refreshing when pressing asp:button, same time as
• onclick needs fire also.

html

<asp:button id="button1" runat="server" text="1" onclick="button1_click" onclientclick="change_select(this); return false;" cssclass="button black"/> 

javascript

function change_select(objs) {      $('.darkgray').removeclass('darkgray').addclass('black');     objs.classname = "button darkgray"; 

}

code behind

    int[] answerarray = new int[28];     int answer = 0;     int currentq = 0;  protected void button1_click(object sender, eventargs e)     {                      answer = 1;             } protected void buttonnext_click(object sender, eventargs e)     {             answerarray[currentq] = answer;             currentq++;       } 

you cannot prevent refresh page if have intention store value in code behind using asp.net webforms. see related question how stop reload page when click button?