asp.net - javascript - get value of a text box that contains a date? -

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• getting values of textboxes in javascript 5 answers

i have text box date (gotten date picker) , trying value of text box using javascript. reason function returning null or errs.can me?

<asp:textbox id="txtstartdate" name="txtstartdate" runat="server" maxlength="100"   causesvalidation="true"                                                                      validationgroup="priorauth" cssclass="effect"></asp:textbox>  <ajaxtoolkit:calendarextender id="cestartdate" runat="server" format="mm/dd/yyyy"                                                                     popupbuttonid="imagebutton1" targetcontrolid="txtstartdate" popupposition="bottomright" />   alert("date: " + date.parse(document.getelementsbyname('txtstartdate').value));                 var startdate = date.parse(document.getelementsbyname('txtstartdate').value); 

one thing is: getelementsbyname should return array of elements

point whichever index makes sense:

document.getelementsbyname('txtstartdate')[0].value

or use getelementbyid