function printPartOfPage(Div)
{

 var printContent = document.getElementById(Div);
 
 var windowUrl = 'about:blank';
 var uniqueName = new Date();
 var windowName = 'Print' + uniqueName.getTime();
 var printWindow = window.open(windowUrl, windowName, 'left=50000,top=50000,width=0,height=0');

 //document.getElementById("button").style.visibility="hidden";

 printWindow.document.write(document.getElementById("table").innerHTML);
 printWindow.document.write(printContent.innerHTML);
 printWindow.document.close();
 printWindow.focus();
 printWindow.print();
 printWindow.close();
 
 document.getElementById("button").style.visibility="visible";

 return false;

}