function validateEmail(theForm)
{
 if (theForm.emailadd.value == "")
  {
    alert("Please enter a value for the \"Email\" field.");
    theForm.emailadd.focus();
    return (false);
  } else {
    
    /* 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=theForm.emailadd.value.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)")
	  theForm.emailadd.focus();
    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.")
	theForm.emailadd.focus();
    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!")
			theForm.emailadd.focus();
		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.")
	theForm.emailadd.focus();
    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.")
   theForm.emailadd.focus();
   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)
   theForm.emailadd.focus();
   return false
 }

 // If we've gotten this far, everything's valid!
 return true;
 }
}

if (/msie/i.test (navigator.userAgent)) //only override IE
{
	document.nativeGetElementById = document.getElementById;
	document.getElementById = function(id)
	{
		var elem = document.nativeGetElementById(id);
		if(elem)
		{
			//make sure that it is a valid match on id
			if(elem.attributes['id'].value == id)
			{
				return elem;
			}
			else
			{
				//otherwise find the correct element
				for(var i=1;i<document.all[id].length;i++)
				{
					if(document.all[id][i].attributes['id'].value == id)
					{
						return document.all[id][i];
					}
				}
			}
		}
		return null;
	}
}
function loadVideo(vid){
document.getElementById('videolayer').innerHTML='<span class="big">IF THE VIDEO BELOW IS CHOPPY, PLEASE PAUSE IT FOR A FEW MINUTES</span><br />'+
'<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=8,0,0,0" width="640" height="394" align="middle">'+
'    <param name="allowScriptAccess" value="sameDomain" />'+
'    <param name="movie" value="player.swf" />'+
'    <param name="FlashVars" value="flvURL='+vid+'&ControlPanelColor=0xccff00&buttonColor=0x000000&ControlPanelPosition=0&showControlPanel=1&ShowtimeColor=0xffffff&bAutoPlay=1&bAutoRepeat=0&BufferTime=5&tmeColor=0xffffff&loaColor=0x666666&GroundColor=0x000000&conNum=5&bShowtime=1&startvolume=100" />'+
'    <param name="quality" value="high" />'+
'    <param name="bgcolor" value="#000000" />'+
' 	<param name="scale" value="noscale" />'+
'	<param name="salign" value="lt" />'+	
'    <embed src="player.swf" width="640" height="394" align="middle" quality="high" bgcolor="#000000" scale="noscale" salign="lt" FlashVars="flvURL='+vid+'&ControlPanelColor=0xccff00&buttonColor=0x000000&ControlPanelPosition=0&showControlPanel=1&ShowtimeColor=0xffffff&bAutoPlay=1&bAutoRepeat=0&BufferTime=5&tmeColor=0xffffff&loaColor=0x666666&GroundColor=0x000000&conNum=5&bShowtime=1&startvolume=100" allowScriptAccess="sameDomain" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" />'+
'  </object>'+
'  <div align="center">'+
'  <input type="button" value="CLOSE" onClick="unloadVideo()" />'+
'</div>';
document.getElementById('bkgd').style.filter='progid:DXImageTransform.Microsoft.Alpha(Opacity=20)'; 
document.getElementById('bkgd').style.filter='alpha(opacity=20)';
document.getElementById('bkgd').style.opacity=0.2;
document.getElementById('videolayer').style.backgroundColor='#FFFFFF';
document.getElementById('videolayer').style.visibility='visible';
}
function unloadVideo(){
document.getElementById('videolayer').style.visibility='hidden';
document.getElementById('bkgd').style.filter='progid:DXImageTransform.Microsoft.Alpha(Opacity=100)'; 
document.getElementById('bkgd').style.filter='alpha(opacity=100)';
document.getElementById('bkgd').style.opacity=1;
document.getElementById('videolayer').innerHTML='';
}