var win = null;
// Function to 'Open a popup window when needed'
function NewWindow(mypage,myname,w,h,scroll){
LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
settings =
'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',resizable'
win = window.open(mypage,myname,settings)
}

var testresults
// Function to 'check that a valid email has been given'
function checkemail(){
var str=document.validation.vemail.value
var filter=/^.+@.+\..{2,3}$/
if (filter.test(str))
testresults=true
else{
alert("Please input a valid email address!")
testresults=false
}
return (testresults)
}


// Function to 'check that an email has been given the !!OK!! '
function checkbae(){
if (document.layers||document.all)
return checkemail()
else
return true
}


// Function to go back in history
function back(){
        var version;
        browserName = navigator.appName;
        if (navigator.appName == "Netscape")
          parent.results.history.back(-1)
        if (navigator.appName == "Microsoft Internet Explorer")
          history.back();
}