function IndexLogin() {
	document.forms['Inloggen'].submit();
}

function SelectLanguage(language) {
	
	var form = language;
	
	document.forms[form].submit();
	
}

function GetEnter(event) {
	// If the enter key is pressed
	if(event.keyCode == 13) {
	    event.cancelBubble = true;
		event.returnValue = false;
		
		// Submit the login Form
		IndexLogin();
		
	}
}

// Popup window laten zien
function popUp(url, x, y) {	
	window.open(url, 'popupWindow','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,copyhistory=no,width='+ x +',height='+ y +',screenX=150,screenY=150,top=200,left=350')
}


function rowOverInputSelect(object) {
	if (object.className == 'input_box') {
		object.className = 'input_box_selected';
	} else if(object.className == 'input_box_selected') {
		object.className = 'input_box';
	}	
}

function toWindowOpener(element, value) {
	
	window.opener.document.getElementById(element).value = value;
	
	window.close();
}

function CUA(ch) {
	var v = ch.checked;
	var f = ch.form;
	for(var i=0;i<f.elements.length;i++) {
		if(f.elements[i].type == "checkbox") {
			f.elements[i].checked = v; 
		}
	}
}

function RetreiveFaculties() {

	if(document.getElementById('edu_level').selectedIndex != 0) {
		l_id = document.getElementById('edu_level').options[document.getElementById('edu_level').selectedIndex].value;
	}
	
	
	ajaxEngine.sendRequest('RetreiveFaculties', 'l_id='+l_id);	
}

function RetreiveEducations() {

	if(document.getElementById('edu_level').selectedIndex != 0) {
		l_id = document.getElementById('edu_level').options[document.getElementById('edu_level').selectedIndex].value;
	}	
	
	if(document.getElementById('edu_faculty').selectedIndex != 0) {
		f_id = document.getElementById('edu_faculty').options[document.getElementById('edu_faculty').selectedIndex].value;
	}	

	
	ajaxEngine.sendRequest('RetreiveEducations', 'l_id='+l_id, 'f_id='+f_id);	
}

function RetreiveSchools() {
	if(document.getElementById('edu_level').selectedIndex != 0) {
		l_id = document.getElementById('edu_level').options[document.getElementById('edu_level').selectedIndex].value;
	}
	
	ajaxEngine.sendRequest('RetreiveSchools', 'l_id='+l_id);
}

function showAllOfferedBooks(user_id, vType, lType) {
	if(user_id) {
		ajaxEngine.sendRequest('showAllOfferedBooks', 'u_id='+user_id, 'vType='+vType, 'lType='+lType);
	} else {
		return false;
	}
}