function selectYear(dropdown) {
	if (dropdown.value.Lenght!='empty') {
		var location = '';
		if (window.location.href.indexOf('.document') > -1) {
			location = window.location.href.substring(0,window.location.href.indexOf('.document')+9);
		} else {
			location = window.location.href.substring(0,window.location.href.indexOf('.aspx'));
			location += '.document';
		}
		location += '/';
		location += dropdown.value;
		location += '.aspx';
		window.location.href = location;
	}
}
function selectClass(dropdown) {
	if (dropdown.value.Lenght!='empty') {
		var location = '';
		if (window.location.href.indexOf('.document') > -1) {
			location = window.location.href.substring(0,window.location.href.indexOf('.document')+9);
		} else {
			location = window.location.href.substring(0,window.location.href.indexOf('.aspx'));
			location += '.document';
		}
		if (document.getElementById('selYear')!=null) {
			location += '/';
			location += document.getElementById('selYear').value;
		}
		location += '/';
		location += dropdown.value;
		location += '.aspx';
		window.location.href = location;
	}
}
function filter() {
	if (document.getElementById('txtSearch').value!='' && document.getElementById('txtSearch').value!='Name, Vorname oder Teile davon') {
		var location = '';
		if (window.location.href.indexOf('.document') > -1) {
			location = window.location.href.substring(0,window.location.href.indexOf('.document')+9);
		} else {
			location = window.location.href.substring(0,window.location.href.indexOf('.aspx'));
			location += '.document';
		}
		if (document.getElementById('selYear')!=null) {
			location += '/';
			location += document.getElementById('selYear').value;
		}
		if (document.getElementById('selClass')!=null) {
			location += '/';
			location += document.getElementById('selClass').value;
		}
		location += '/';
		location += document.getElementById('txtSearch').value;
		location += '.aspx';
		window.location.href = location;
	} else {
		window.alert('Bitte einen Suchbegriff eingeben.');
	}
}