function printme() {
document.getElementById("B1").style.visibility="hidden";
document.getElementById("B2").style.visibility="hidden";
window.print();
window.close();
}
function printSelection(node){
var content=node.innerHTML;
var pwin=window.open('','print_content','height=900,width=820,status=no,toolbar=no,menubar=no,location=no, resizable=yes, scrollbars=yes');
pwin.document.open();
pwin.document.write('