function OpenModelPopup()
    { 
        // document.getElementById ('tdDisplayName').innerHTML='';
        // document.getElementById ('txtName').value='';
        var minWidth, minHeight;
        if (document.documentElement.clientWidth > document.body.scrollWidth)
        {
            minWidth = document.documentElement.clientWidth;
        }
        else
        {
            minWidth = document.body.scrollWidth;
        }
        if (document.documentElement.clientHeight > document.body.scrollHeight)
        {
            minHeight = document.documentElement.clientHeight;
        }
        else
        {
            minHeight = document.body.scrollHeight;
        }
        if (minWidth < 1024){minWidth = 1024};
        if (minHeight < 1024){minHeight = 1024};
        //alert('minWidth is ' + minWidth);
        // alert('scrollWidth is ' + document.body.scrollWidth);
         
         
        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)-50 + 'px';
        document.getElementById ('ModalPopupDiv').style.left='400px';
        
        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= minWidth + 'px'; // document.documentElement.clientWidth + 'px';
        // document.getElementById ('MaskedDiv').style.minwidth=  '1024px';
        document.getElementById ('MaskedDiv').style.height= minHeight + 'px'; //document.documentElement.clientHeight+ 'px';
        // document.getElementById ('MaskedDiv').style.minheight=  '1024px';
    }
    function CloseModelPopup()
    {
        document.getElementById ('MaskedDiv').style.display='none';
        document.getElementById ('ModalPopupDiv').style.display='none';
    }
//     function Submit()
//    {
//        if(document.getElementById ('txtName').value!='')
//        {
//            document.getElementById ('MaskedDiv').style.display='none';
//            document.getElementById ('ModalPopupDiv').style.display='none';
//            document.getElementById ('tdDisplayName').innerHTML='<H1> Hi ' + document.getElementById ('txtName').value +' !</H1>';
//        }
//        else 
//        {
//            alert ('Please enter your name');
//        }
//    }