// Form helpers
function blurDay(item) {
    if (item.value == '') {
        item.value = 'PP';
    }
}
function focusDay(item) {
    if (item.value == 'PP') {
        item.value = '';
	}
}
function blurMonth(item) {
    if (item.value == '') {
        item.value = 'KK';
    }
}
function focusMonth(item) {
    if (item.value == 'KK') {
        item.value = '';
    }
}
function blurYear(item) {
    if (item.value == '') {
        item.value = 'VVVV';
    }
}
function focusYear(item) {
    if (item.value == 'VVVV') {
        item.value = '';
    }
}

function previewCourse(url) {
  window.open(url,'ExternalCourse','width=800,height=600,toolbar=yes,location=yes,directories=yes,status=yes,menubar=yes,scrollbars=yes,copyhistory=yes,resizable=yes')
}