var popUp;

function SetControlValue(controlID, newDate, isPostBack,hdnOriginator)
{   
    //alert(controlID); 
    //alert(hdnOriginator); 
    popUp.close();
    document.forms[0].elements[controlID].value=newDate;
    //alert(document.forms[0].elements['ctl00$maincontent$PostBackOriginator'] == null); 
    //alert(hdnOriginator ); 
    if (hdnOriginator == 'ctl00_maincontent_PostBackOriginator') 
        document.forms[0].elements['ctl00$maincontent$PostBackOriginator'].value= controlID;
    
    __doPostBack(controlID,'');
}

function OpenPopupPage (pageUrl, controlID, isPostBack, hidOriginator)
{
    popUp=window.open(pageUrl+'?controlID='+controlID+'&isPostBack='+ isPostBack+'&Originator='+ hidOriginator,'popupcal', 'width=250,height=300,left=200,top=250'); 
}