ID post back in jquery

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jQuery

Just like this I post back on asp controls dropdown on page load

if (!Page.IsPostBack)

{



regiondrop.DataSource= tea.unileverlist().ToList();

regiondrop.DataTextField = "Region";

regiondrop.DataValueField = "Region";

regiondrop.DataBind();

Label4.Visible = false;



}

What I have tried:

I have control input

<input ID="fromdate" value="dd/mm/yyyy" runat="server" clientidmode="static" />

<input ID="todate" value="dd/mm/yyyy" runat="server" clientidmode="static" />
Now how I post back on these ID's from date and to date in jquery ?