function openExt(mypage,myname,scroll){
var h;

if (is_nav) { h = window.innerHeight; }

if (is_ie) { h = parseInt(document.body.clientHeight); }
 var wint = h * .8;
  var winl = wint * 1.5;
 
  var settings  ='height='+wint+',';
      settings +='width='+winl+',';
	  settings +='toolbar=yes, location=yes, menubar=yes, scrollbars=yes, resizable=yes, status=yes, top=0, left=0';

  win=window.open(mypage,myname,settings);
  if(parseInt(navigator.appVersion) >= 4){win.window.focus();}
}
function openPlan(mypage,myname,scroll){
var h;
 
  var settings  ='height=350,';
      settings +='width=575,';
	  settings +='toolbar=yes, location=yes, menubar=yes, scrollbars=yes, resizable=yes, status=yes, top=0, left=0';

  win=window.open(mypage,myname,settings);
  if(parseInt(navigator.appVersion) >= 4){win.window.focus();}
}
function openTour(mypage,myname,scroll){
var h;
 
  var settings  ='height=530,';
      settings +='width=750,';
	  settings +='toolbar=no, location=no, menubar=no, scrollbars=no, resizable=no, status=no, top=0, left=0';

  win=window.open(mypage,myname,settings);
  if(parseInt(navigator.appVersion) >= 4){win.window.focus();}
}