function choose_book(href1)
{
    parent.location = href1;
}

function sf()
{
    parent.topFrame.searchform.q.focus();
}

function venster(URL) {
	venster = window.open(URL, 'popupvenster', 'width=624,height=640,resizable=no, menubar=no, scrollbars=no, status=no, toolbar=no')
}