var default_cb_number = "Ihre Telefonnummer";
var default_cb_area_code = "Ihre Vorwahl";

function CheckForm( FormData )
{
    var Form = document.callbackform;        
    
	// Überprüfung von Textfeldern
	
	if( Form.cb_area_code.value == "" | Form.cb_area_code.value == default_cb_area_code )
	{
		alert( "Bitte geben Sie Ihre Ortsvorwahl oder Handyvorwahl ein." );
		Form.cb_area_code.focus();
		return false;
	}
    	
	if( Form.cb_number.value == "" | Form.cb_number.value == default_cb_number )
	{
		alert( "Bitte geben Sie Ihre Telefonnummer ein." );
		Form.cb_number.focus();
		return false;
	} 

    var but = document.getElementById('button');
    var img = document.createElement( 'IMG' );
    img.style.marginLeft = '40px';
    img.id = "loader";
    img.src = "/wp-content/themes/oeser/images/ajax-loader.gif";
    var call = document.getElementById('call');
    call.removeChild( but );
    call.appendChild( img );
    xajax_sendMail( FormData );
    return false;
} 

function clear_input( elm )
{
    if( elm.value == default_cb_number | elm.value == default_cb_area_code  )
        elm.value="";
} 

function set_input( elm )
{
    if( elm.value == "")
    {
        if( elm.name == "cb_number" )
            elm.value = default_cb_number;
        else
            elm.value = default_cb_area_code;
    }
}