function newwin(str) {
 if (str != "") {
 if (navigator.appVersion.substring(0,1) >= "3") {
 popup=window.open(str,'popup','width=500,height=640,resizable=no,scrollbars=no,status=no,left=0,top=0');
 popup.location.href=str;
 popup.focus();
 } else {
 popup=window.open(str,'popup','width=850,height= 600,resizable=no,scrollbars=no,status=no,left=0,top=0');
 window.open(str,'popup','width=500,height=640,resize=no,scrollbars=no,status=no,left=0,top=0');
 popup.location.href=str;
 }
 }
 }
// JavaScript Document