function select_activ_channel(){
    
    tmp2 =document.URL.split("www.adtiger.de/")[1];
    tmp2 = tmp2.split(".")[0];
    //alert(tmp2);
    for(i=0;i<30;i++){
        if(document.getElementById('channel_'+i) && tmp2 != ''){
            tmp = document.getElementById('channel_'+i).innerHTML;
            var Ergebnis = tmp.search(tmp2);
            if (Ergebnis != -1){
                document.getElementById('channel_'+i).className = 'channel channel_hover';
            }
        }
    }
}


var preDefVals = new Object();

function predef(obj) {
	if(!preDefVals[obj.name]) {
		preDefVals[obj.name] = obj.value;
		obj.value = '';
		obj.onfocus = function() {predef(obj);}
		obj.onblur = obj.onmouseout = function() {predefOut(obj);}
	}
	else if(preDefVals[obj.name] == obj.value){
		obj.value = '';                   
	}
}

function predefOut(obj) {
	if(obj.value == ''){
		obj.value = preDefVals[obj.name];
	}
}

function changeAction(form) {
	feld = form.user;
	feldValue = checkradio(feld);

	if(feldValue == 'user') {
		url = 'http://www1.adtiger.de/user/index_home.php';
	}
	else {
		url = 'http://www1.adtiger.de/client/index_home.php';
	}
	form.action = url;
}

function checkradio(feld){
	for (i=0; i<feld.length; i++) {
		if(feld[i].checked == true){
			return feld[i].value;
		}
	}
} 


// Suchfeld
var preDefVals = new Object();

function predef(obj, focus) {
	if(!preDefVals[obj.name]) {
		preDefVals[obj.name] = new Object();
		preDefVals[obj.name]['value'] = obj.value;
		obj.value = '';
		obj.onfocus = function() {predef(obj, true);}
		obj.onblur = function() {predefOut(obj, true);}
		obj.onmouseout = function() {predefOut(obj, false);}
	}
	else if(preDefVals[obj.name]['value'] == obj.value)
		obj.value = '';
	if(focus)
		preDefVals[obj.name]['focus'] = focus;
}

function predefOut(obj, focus) {
	if(obj.value == '' && (focus || !preDefVals[obj.name]['focus'])) {
		obj.value = preDefVals[obj.name]['value'];
		preDefVals[obj.name]['focus'] = false;
	}
}