function download_window()
{
	window.open("download.php", "", "width=580,height=555,status=yes,scrollbars=yes,resizable=yes");
}

function chng_image( imagename, newimage )
{
if (document.images)
{ document[imagename].src = newimage;
}
return true;
}
//+++++++++++++++++++++++++++++++++++++++++++++++
function write_reef()
{
var domain = "scientific-software.com";
var user = "reefmorse";
var recipient = user + "@" + domain;
var murl = "<A HREF=mailto:" + recipient + ">" + recipient + "</a>";
document.write( murl);
}