I'm making a website for a local enterprise charity, the working copy of which can be found here: www.youthenterprise.co.uk/newhullready/coded
no matter what I do, the navigation doesn't work in ie7 (I have consulted a programmer friend who doesn't get it either) so I'm having to launch the website with an alert box which pops up when the user is using ie7, warning them that their browser is not supported. It worked the first time I loaded the page using ie7 but doesn't do it after the first time you click ok. The problem is a lot of their traffic will come from schools and other instititions where multiple users will be using a computer so I need it to pop up every time someone tries to view it on ie7, even if they've clicked ok before.
function WelcomeMSG ()
alert("Welcome to Hull Ready - the future is ours.
Unfortunately this website can no longer support the browser Internet Explorer 7. All other browsers, including Internet Explorer 8 and above are supported.")