How to pass Datagrid textbox ID to javascript function

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ASP.NET

How to pass Datagrid textbox ID to javascript function


Following is the Textbox Control from Datagrid

<asp:TextBox ID="txtQuote" runat="server" CssClass="textbox" MaxLength="10" style="text-align:center" onmouseover='changeText("<%=txtQuote.ClientID%>")' Text='<%# DataBinder.Eval(Container.DataItem,"Quote_Value") %>' Width="100%">

JavaScript function

<script type="text/javascript">
function changeText(text) {
//var display = document.getElementById(text);
alert(text);
//display.innerHTML = "";
//display.innerHTML = text;
}
function changeback(text) {
var display = document.getElementById('text-display');
display.innerHTML = "";
display.innerHTML = text;
}
</script>

Alert always shows this string value: "<%=txtQuote.ClientID%>", it is not showing the textbox ID