function extscripttest()
{
alert('External Javascript Working');
}


    function openstreetmap()
{
window.open('http://www.streetmap.co.uk/newmap.srf?x=241353&y=220044&z=0&sv=sa31+1jr&st=2&pc=sa31+1jr&mapp=newmap.srf&searchp=newsearch.srf','mywindow','width=640,height=480,toolbar=yes,location=yes,directories=yes,status=yes,menubar=yes,scrollbars=yes,copyhistory=yes,resizable=yes');
}