function RunFoo()
{
   document.write('<object type="application/x-shockwave-flash" data="homepage.swf" width="357" height="178">\n');
   document.write(' <param name="movie" value="homepage.swf" />\n');
   document.write('</object>\n');
}
 
 
 function emailCheck (emailStr) {
 /* The following pattern is used to check if the entered e-mail address
    fits the user@domain format.  It also is used to separate the username
    from the domain. */
 var emailPat=/^(.+)@(.+)$/
 /* The following string represents the pattern for matching all special
    characters.  We don't want to allow special characters in the address. 
    These characters include ( ) < > @ , ; : \ " . [ ]    */
 var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
 /* The following string represents the range of characters allowed in a 
    username or domainname.  It really states which chars aren't allowed. */
 var validChars="\[^\\s" + specialChars + "\]"
 /* The following pattern applies if the "user" is a quoted string (in
    which case, there are no rules about which characters are allowed
    and which aren't; anything goes).  E.g. "jiminy cricket"@disney.com
    is a legal e-mail address. */
 var quotedUser="(\"[^\"]*\")"
 /* The following pattern applies for domains that are IP addresses,
    rather than symbolic names.  E.g. joe@[123.124.233.4] is a legal
    e-mail address. NOTE: The square brackets are required. */
 var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
 /* The following string represents an atom (basically a series of
    non-special characters.) */
 var atom=validChars + '+'
 /* The following string represents one word in the typical username.
    For example, in john.doe@somewhere.com, john and doe are words.
    Basically, a word is either an atom or quoted string. */
 var word="(" + atom + "|" + quotedUser + ")"
 // The following pattern describes the structure of the user
 var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
 /* The following pattern describes the structure of a normal symbolic
    domain, as opposed to ipDomainPat, shown above. */
 var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")
 
 
 /* Finally, let's start trying to figure out if the supplied address is
    valid. */
 
 /* Begin with the coarse pattern to simply break up user@domain into
    different pieces that are easy to analyze. */
 var matchArray=emailStr.match(emailPat)
 if (matchArray==null) {
   /* Too many/few @'s or something; basically, this address doesn't
      even fit the general mould of a valid e-mail address. */
 	alert("Email address seems incorrect (check @ and .'s)")
 	return false
 }
 var user=matchArray[1]
 var domain=matchArray[2]
 
 // See if "user" is valid 
 if (user.match(userPat)==null) {
     // user is not valid
     alert("The username doesn't seem to be valid.")
     return false
 }
 
 /* if the e-mail address is at an IP address (as opposed to a symbolic
    host name) make sure the IP address is valid. */
 var IPArray=domain.match(ipDomainPat)
 if (IPArray!=null) {
     // this is an IP address
 	  for (var i=1;i<=4;i++) {
 	    if (IPArray[i]>255) {
 	        alert("Destination IP address is invalid!")
 		return false
 	    }
     }
     return true
 }
 
 // Domain is symbolic name
 var domainArray=domain.match(domainPat)
 if (domainArray==null) {
 	alert("The domain name doesn't seem to be valid.")
     return false
 }
 
 /* domain name seems valid, but now make sure that it ends in a
    three-letter word (like com, edu, gov) or a two-letter word,
    representing country (uk, nl), and that there's a hostname preceding 
    the domain or country. */
 
 /* Now we need to break up the domain to get a count of how many atoms
    it consists of. */
 var atomPat=new RegExp(atom,"g")
 var domArr=domain.match(atomPat)
 var len=domArr.length
 if (domArr[domArr.length-1].length<2 || 
     domArr[domArr.length-1].length>3) {
    // the address must end in a two letter or three letter word.
    alert("The address must end in a three-letter domain, or two letter country.")
    return false
 }
 
 // Make sure there's a host name preceding the domain.
 if (len<2) {
    var errStr="This address is missing a hostname!"
    alert(errStr)
    return false
 }
 
 // If we've gotten this far, everything's valid!
 return true;
}