function _enableParam(param) { // alle anderen Parameter ausstellen:
	var allParams = Array('search', 'query', 'satitle', 'lang', 'bible', 'ref', 'field-keywords');
	// zuerst alle aus:
	for ( var i = 0; i < allParams.length; i++ ) 
		if (document.form_search[allParams[i]] != null )
			document.form_search[allParams[i]].disabled = true;
	// an:		
	for ( var i = 0; i < param.length; i++ ) 
		if (document.form_search[param[i]] != null )
			document.form_search[param[i]].disabled = false;
}


function searchWiki() {
	_enableParam(Array('search'));
	document.form_search.search.value = document.form_search.q.value;
	document.form_search.action = 'http://de.wikipedia.org/wiki/Spezial:Search'; 
	document.form_search.submit();
}


function searchLeo() {
	_enableParam(Array('search'));
	document.form_search.search.value = document.form_search.q.value;
	document.form_search.action = 'http://dict.leo.org/?lang=de&lp=ende';
	document.form_search.submit();
}


function searchEbay() {
	_enableParam(Array('satitle'));
	document.form_search.satitle.value = document.form_search.q.value;
	document.form_search.action = 'http://search.ebay.de/search/search.dll'
	document.form_search.submit();
}


function searchBibelserver() {
	_enableParam(Array('ref','bible'));
	document.form_search.ref.value = document.form_search.q.value;
	document.form_search.action = 'http://www.bibleserver.com/go.php';  
	document.form_search.submit();
}


function searchAmazon() {
	_enableParam(Array('field-keywords','url','__mk_de_DE'));
	document.getElementsByName("field-keywords")[0].value = document.form_search.q.value;
	document.form_search.url.value = 'search-alias=aps';
	document.form_search.__mk_de_DE.value = '%C5M%C5Z%D5%D1';
	// document.form_search.action = 'http://www.amazon.de/s/';
	document.form_search.action = 'http://www.amazon.de/s/ref=nb_ss_?';
	
	document.form_search.submit();
}