function hideInputBg(field){
	ipField = document.getElementById(field);
	ipField.style.backgroundImage = "None";
}

function searchInKoopera(){
	sform = document.forms[0];
	for (i = 0; i < sform.elements.length; i++){
		suffix = "_locked";
		if ((elm = sform.elements[i]).name == "app"){
			elm.name = "app" + suffix;
		}
		if ((elm = sform.elements[i]).name == "search_root_id"){
			elm.name = "search_root_id" + suffix;
		}
		if ((elm = sform.elements[i]).name == "search_string"){
			elm.name = "searchDescription";
		}
	}
	sform.action = "http://www.hochfranken.org/xist4c/web/kooperationsdatenbank_id_3441_.htm";
	sform.submit();
}