function jsopen() {
	buchungsfenster = window.open('about:blank','buchungen','width=720,height=400,screenX=50,screenY=30, dependent=yes,scrollbars=yes');
	buchungsfenster.focus();
	document.buchungsanfrage.submit();
}

function datumsfelder() {
	var heute = new Date();
	var d = heute.getDate() - 1;
	var m = heute.getMonth();
	var j = heute.getFullYear();
	document.buchungsanfrage.d1.selectedIndex = d;
	document.buchungsanfrage.d2.selectedIndex = d;
	document.buchungsanfrage.m1.selectedIndex = m;
	document.buchungsanfrage.m2.selectedIndex = m;
	for (i=0; i<document.buchungsanfrage.j1.length; i++) {
		if ( (document.buchungsanfrage.j1[i].value<j) || (document.buchungsanfrage.j1[i].value>j+2) ) {
			document.buchungsanfrage.j1[i] = null;
			document.buchungsanfrage.j2[i] = null;
			i--;
		}
	}
}

function jssubmit() {
	if (jssubmit.arguments[0]) {
		value = jssubmit.arguments[0];
	} else {
		value = 'anzeigen';
	}
	document.write('<input type="button" class="indexsuche_submit" value="'+value+'" onclick="jsopen()"/>');
}