// check if we have SVG support. Currently only IE5+ supports SVG well
//
function checkBrowser(no_output){
 var version=0;
 if (navigator.appVersion.indexOf("MSIE")!=-1){
  var temp=navigator.appVersion.split("MSIE");
  version=parseFloat(temp[1]);
 }
 if ((navigator.appName != 'Microsoft Internet Explorer') || (version < 5) ){
  if(!no_output) document.write('<font size=2 color="red">This page will only work 100% on <b>Internet Explorer 5+</b>. Other browsers have no or poor SVG support. Your browser is ' + navigator.appName + ' ' +  navigator.appVersion + ' (' + navigator.userAgent +')</font><br><br>');
  return false;
 }
 return true;
}