function checkMindestmenge( obj, mindest)
{
    var val = obj.value.replace(/[^\.^,\d]/g, '');
    obj.value = val;

    if( ( obj.value % mindest ) == 0 && obj.value>0)
        return true;
    else
    {
        obj.value = mindest;
        return false;
    }
}

function EMail(s)
{
    var a = false;
    var res = false;
    if(typeof(RegExp) == 'function')
    {
        var b = new RegExp('abc');
        if(b.test('abc') == true) {
            a = true;
        }
    }

    if(a == true)
    {
        reg = new RegExp('^([a-zA-Z0-9\\-\\.\\_]+)'+'(\\@)([a-zA-Z0-9\\-\\.]+)'+'(\\.)([a-zA-Z]{2,4})$');
        res = (reg.test(s));
    }
    else
    {
        res = (s.search('@') >= 1 &&
        s.lastIndexOf('.') > s.search('@') &&
        s.lastIndexOf('.') >= s.length-5)
    }

    return(res);
}

function showOENummern( elementid )
{
	var obj = document.getElementById("nummern"+elementid);
	var objpfeil = document.getElementById("pfeil"+elementid);
	var objtext = document.getElementById("text"+elementid);
	
	if( obj.style.display == "none")
	{
		obj.style.display = "block";
		objpfeil.src = "images/link_pfeil_klein_unten.png";
		objtext.innerHTML = "ausblenden";
	}
	else
	{
		obj.style.display = "none";
		objpfeil.src = "images/link_pfeil_klein.png";
		objtext.innerHTML = "anzeigen";
	}
}

function showFahrzeuge( elementid )
{
    var obj = document.getElementById("fahrzeuge"+elementid);
    
    if( obj.style.display == "none")
        obj.style.display = "block";
    else
        obj.style.display = "none";
    
    return false;
}

function showRechnung( el)
{
    if( el.checked )
        document.getElementById("rechnung").style.display = "block";
    else
        document.getElementById("rechnung").style.display = "none";
}

function changeBild( elementid, bild)
{
	var obj = document.getElementById("bilder"+elementid);
	var linkobj = document.getElementById("link"+elementid);
	
	obj.src = "images/produkte/"+bild;
	linkobj.href= "zeigen.php?bild="+bild;
}

function kbaCheck(nr)
{
    if ( nr == 1 && document.getElementById("kbaSearch").value.length==4) {
        document.getElementById("kbaSearch2").focus();
        document.getElementById("kbaSearch2").select();
    }
    if (nr==2 && document.getElementById("kbaSearch2").value.length==3)
    {
        document.getElementById("searchKBA").focus();
        return true;
    }
}

function kbaCheckLeft(nr)
{
    if ( nr == 1 && document.getElementById("kbaSearchSmall").value.length==4) {
        document.getElementById("kbaSearchSmall2").focus();
        document.getElementById("kbaSearchSmall2").select();
    }
    if (nr==2 && document.getElementById("kbaSearchSmall2").value.length==3)
    {
        document.getElementById("searchKBALeft").focus();
        return true;
    }
}