function focusForm() {
  if (document.login)
    document.login.username.focus();
} 

 function openPic(url) {
   width = 600;
   height = 600;
   url = '/pic.php?src=' + url;
   var win  = window.open( url, 'pic',
                'height = ' + height + ', width = ' + width + ', ' +
                'resizable = yes, ' +
                'location = no, menubar = no, status = no, toolbar = no, ' +
                'screenX = 100, left = 100, ' +
                'screenY = 100, top = 100' );
   win.focus();
 }

 function openMap(url) {
   width = 600;
   height = 600;
   var win  = window.open( url, 'map',
                'height = ' + height + ', width = ' + width + ', ' +
                'resizable = yes, ' +
                'location = no, menubar = no, status = no, toolbar = no, ' +
                'screenX = 50, left = 50, ' +
                'screenY = 50, top = 50' );
   win.focus();
 }

function openPDF(url) {
   var width = 600;
   var height = 500;
   var win  = window.open( url, 'pdf',
                'height = ' + height + ', width = ' + width + ', ' +
                'resizable = yes, ' +
                'location = no, menubar = no, status = no, toolbar = no, ' +
                'screenX = 100, left = 100, ' +
                'screenY = 100, top = 100' );
   win.focus();

}