1  <HTML>
  2  
  3  <HEAD>
  4  <TITLE>JavaScript Example:  if-then-else</TITLE>
  5  
  6  <SCRIPT LANGUAGE="JavaScript">
  7  <!-- hide script from old browsers
  8  
  9  function displayMsg(number) {
 10    if ( number == 0 )
 11      window.alert("You want to learn Java!")
 12    else if ( number == 1 )
 13      window.alert("You want to learn JavaScript!")
 14    else if ( number == 2 )
 15      window.alert("You want to learn VRML!")
 16    else
 17      // This can't happen:
 18      window.alert("You don't want to learn anything!!")
 19  }
 20  
 21  // end script hiding -->
 22  </SCRIPT>
 23  
 24  </HEAD>
 25  
 26  <BODY BGCOLOR="#FFFFFF">
 27  
 28  <CENTER><FORM>
 29    Which technology do you want to learn? <P>
 30    <INPUT TYPE="button" NAME="java" 
 31           VALUE="Java" onClick="displayMsg(0)">
 32    <INPUT TYPE="button" NAME="javascript" 
 33           VALUE="JavaScript" onClick="displayMsg(1)">
 34    <INPUT TYPE="button" NAME="vrml" 
 35           VALUE="VRML" onClick="displayMsg(2)">
 36  </FORM></CENTER>
 37  
 38  </BODY>
 39  </HTML>