function updateCopy(element) {
    var input_search = 'mein Mittagsmenü';
    var input_email = 'E-Mail-Adresse hier eintragen';
    var input_map_search = 'Hier Straße/Ort eingeben!';
    // Route berechnen
    var input_street = 'Straße';
    var input_number = 'Nr.';
    var input_zip = 'PLZ';
    var input_city = 'Ort';
    
    var text = '';
    
    if (element.name == 'search_key') {
        text = input_search;
    } else if (element.name == 'email') {
        text = input_email;
    } else if (element.name == 'address') {
        text = input_map_search;
    } else if (element.name == 'street') {
        text = input_street;
    } else if (element.name == 'number') {
        text = input_number;
    } else if (element.name == 'zip') {
        text = input_zip;
    } else if (element.name == 'city') {
        text = input_city;
    }
    
    if (element.value == '') {
        element.value = text;
    } else if (element.value == text) {
        element.value = '';
    }
}

function checkForm() {
    var return_val = true;
    
    if (document.getElementById('text').value == 'mein Mittagsmenü') {
        return_val = false;
    }
    
    return return_val;
}

function setValue(element, action, text) {
	if (action == 'onblur' && element.value == '') {
        element.value = text;
    } else if (action == 'onfocus' && element.value == text) {
        element.value = '';
    }
}