//Preloading...
cache_image_4 = new Image();
cache_image_4.src = "images/top_menu/top_00_01.jpg";
cache_image_5 = new Image();
cache_image_5.src = "images/top_menu/top_00_00.jpg";
cache_image_6 = new Image();
cache_image_6.src = "images/design/menu_bg_white_margin.jpg";



function mySelect(source, param) {
	var elem = document.getElementById(source);
	if(elem.value == param) {
		elem.value = '';				
	}
}

function myBlur(source, param) {
	var elem = document.getElementById(source);
	if(elem.value == '') {
		elem.value = param;				
	}
}

function checkTimeChange() {
	var elem = document.getElementById('time_select');
	if(elem.value == 'none') {
		elem.value = '180';
	}
}

function checkForm() {
	var name = document.getElementById('reservation_name');
	var email = document.getElementById('reservation_email');
	
	/*
	if(name.value == '' || name.value == 'Name' || name.value.length <= 2 || name.value.length > 20) {
		alert('Bitte geben Sie in das erste(!) Feld Ihren Namen ein. Danach in das zweite Feld Ihre E-Mail-Adresse.');
		name.focus();
		return false;
	}
	if(email.value == '' || email.value == 'E-Mail-Adresse' || !email.value.toLowerCase().match('^[a-z0-9\._-]+@+[a-z0-9\._-]+\.+[a-z]{2,4}$')) {
		alert('Bitte geben Sie in das zweite(!) Feld eine gültige E-Mail-Adresse ein.');
		email.focus();
		return false;
	}
	*/
	return true;
}


function receiveFocus(param) {
	var elem = document.getElementById(param);
	elem.style.backgroundColor = '#ffffff';
	elem.style.color = '#000000';
	elem.style.borderStyle = 'inset';
}

function loseFocus(param) {
	var elem = document.getElementById(param);
	elem.style.backgroundColor = '#999999';
	elem.style.color = '#4d4d4d';
	elem.style.borderStyle = 'dotted';
}