var popUp;

function SetControlValue(controlID, newDate, isPostBack)
{
    popUp.close();
    document.forms[0].elements[controlID].value=newDate;
    __doPostBack(controlID,'');
}

function OpenPopupPage (pageUrl, controlID, isPostBack, years)
{
    popUp=window.open(pageUrl+'?controlID='+controlID+'&isPostBack='+ isPostBack + '&years='+ years + '&date=' + document.forms[0].elements[controlID].value,'popupcal', 'width=250,height=320,left=200,top=250'); 
}