function OpenModelPopup()
    {     
  
        document.getElementById('MaskedDiv').style.display='';
        document.getElementById('MaskedDiv').style.visibility='visible';
        document.getElementById('MaskedDiv').style.top='0px';
        document.getElementById('MaskedDiv').style.left='0px';
        document.getElementById('MaskedDiv').style.width=  document.documentElement.clientWidth +40+ 'px';
        document.getElementById('MaskedDiv').style.height= document.documentElement.clientHeight+250 +'px';
      
        document.getElementById('ModalPopupDiv').style.visibility='visible';
        document.getElementById('ModalPopupDiv').style.display='';
        document.getElementById('ModalPopupDiv').style.top= Math.round ((document.documentElement.clientHeight/2)+ document.documentElement.scrollTop)-100 + 'px';
        document.getElementById('ModalPopupDiv').style.left='400px';
        
      
    }
    function CloseModelPopup()
    {
        document.getElementById('MaskedDiv').style.display='none';
        document.getElementById('ModalPopupDiv').style.display='none';
    }