随机跳出信息窗口

下面框中为脚本显示区

脚本说明：
把如下代码加入<body>区域中:
<SCRIPT LANGUAGE="JavaScript">
function generateRandomNumber() {
 var tempString = ""
 tempString += Math.random() * 100000
 return tempString.substring(2,3)
}
config='toolbar=no,location=no,directories=no,status=no,menubar=no,width=300,height=150'

config += 'scrollbars=no,resizable=no'
output = window.open ("","outputwindow",config)
output.document.write('<title>Random Useless Fact</title>');
output.document.write('<BODY bgcolor=#000066 text=#cccccc>');
output.document.write('<center><big>Random Useless Fact:</big>');
output.document.write('<hr> ');
if (generateRandomNumber()=="1")
 {output.document.write('Each year more people in the United States are killed from the bite of a poisonous snake than the bite of a non-poisonous one.');
 output.document.write(' ')}
if (generateRandomNumber()=="2")
 {output.document.write('Each year more women in the Unites States get pregnant than men.');
 output.document.write(' ')}
if (generateRandomNumber()=="3")
 {output.document.write('Flourine (Fl) is the most active metal.');
 output.document.write(' ')}
if (generateRandomNumber()=="4")
 {output.document.write('Marilyn Manson (a.k.a. Brian Warner) was born in 1969.');
 output.document.write(' ')}
if (generateRandomNumber()=="5")
 {output.document.write('I have not entered this fact yet. Please try again. <' + generateRandomNumber());
 output.document.write('>');
 output.document.write(' ')}
if (generateRandomNumber()=="6")
 {output.document.write('I have not entered this fact yet. Please try again. <' + generateRandomNumber());
 output.document.write('>');
 output.document.write(' ')}
if (generateRandomNumber()=="7")
 {output.document.write('I have not entered this fact yet. Please try again. <' + generateRandomNumber());
 output.document.write('>');
 output.document.write(' ')}
if (generateRandomNumber()=="8")
 {output.document.write('I have not entered this fact yet. Please try again. <' + generateRandomNumber());
 output.document.write('>');
 output.document.write(' ')}
if (generateRandomNumber()=="9")
 {output.document.write('I have not entered this fact yet. Please try again. <' + generateRandomNumber());
 output.document.write('>');
 output.document.write(' ')}
if (generateRandomNumber()=="0")
 {output.document.write('I have not entered this fact yet. Please try again. <' + generateRandomNumber());
 output.document.write('>');
 output.document.write(' ');}
else
 {output.document.write('Tungstun (W) has the highest melting point of all metals. That is why it is used in light bulbs.');
 output.document.write(' ')}

</SCRIPT>