function popup(URL) {
w = window.open(URL, "", "toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=0,width=500,height=300");
}
function popup_pdf(URL) {
w = window.open(URL, "", "toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=1,width=800,height=600");
}