function arm()
{
 var dummyvar = window.open("arm.html", "", "toolbar=0, location=0, directories=0, menuBar=0, scrollbars=0, resizable=0, width=500, height=400, left=50, top=0");
}
function iso()
{
 var dummyvar = window.open("iso.html", "", "toolbar=0, location=0, directories=0, menuBar=0, scrollbars=yes, resizable=0, width=520, height=500, left=50, top=0");
}

function watertank()
{
 var dummyvar = window.open("watertank-certificate.html", "", "toolbar=0, location=0, directories=0, menuBar=0, scrollbars=yes, resizable=0, width=520, height=500, left=50, top=0");
}