function open_new_window(url) {
  window.open(url,"",'width=600,height=310');
}

function hidestatus(statusmsg)
{
	window.status=statusmsg;
	return true;
}

var newwindow = ''
function popitup(url) {
if (newwindow.location && !newwindow.closed) {
    newwindow.location.href = url; 
    newwindow.focus(); } 
else { 
    newwindow=window.open(url,'htmlname','width=762,height=550,resizable=1');} 
}


function tidy() {
if (newwindow.location && !newwindow.closed) { 
   newwindow.close(); } 
}


function checkform(form)
{
    if (form.name.value == "") {
    alert( "Please enter your name." );
    form.name.focus();
    return false ;
    }
    if (form.telephone.value == "") {
    alert( "Please enter your telephone number." );
    form.telephone.focus();
    return false ;
    }
    if (form.job_location.value == "") {
    alert( "Please enter the job location." );
    form.job_location.focus();
    return false ;
    }
    return true ;
}