var win_opened =	0;
var win_offset =	5;
var i;
function get_href(e) {
	var targ;
	var ev =	(!e) ?	window.event :	e;
	if (ev.target) {
		targ =	ev.target;
	} else if (ev.srcElement) {
		targ =	ev.srcElement;
	}
	if ((targ.nodeType == 3) || (targ.getAttribute("src"))) {
		targ =	targ.parentNode;
	}
	return targ.getAttribute("href");
}
function opn_get(e, w, h, lo, sc, tb, me, o_l) {
	var saH =	screen.availHeight;
	var saW =	screen.availWidth;
	h =	(document.all) ? h - 25 :	h;
	var e_w =	Math.min(saW - 10, w);
	var e_h =	Math.min(saH - 10, h);
	var l =	Math.max(parseInt((saW - e_w) / 4, 10) + win_opened * win_offset, 0) + o_l;
	var t =	(saH - e_h > 100) ?	Math.max(parseInt((saH - e_h) / 3, 10), 0) - parseInt(o_l / 5, 10) :	0;
	var win =	window.open(get_href(e), 'bswin_' + new Date().getTime(), ',width=' + e_w + ',height=' + e_h + ',left=' + l + ',top=' + t + ',location=' + lo + ',scrollbars=' + sc + ',toolbar=' + tb + ',menubar=' + me + ',status=yes,resizable=yes');
	win_opened++;
	return (win) ?  false :	true;
}
function opn_extL1(e) {
	return opn_get(e, 579, 600, 'no', 'yes', 'no', 'yes', 0);
}
function opn_ext64(e) {
	return opn_get(e, 708, 654, 'no', 'yes', 'no', 'yes', 0);
}
function opn_extD3(e) {
	return opn_get(e, 857, 630, 'yes', 'yes', 'yes', 'yes', 0);
}
function opn_parW(e) {
	if ((window.name.indexOf("bswin") != -1) && (window.opener) && ((!window.opener.closed) || (window.opener.closed === false))) {
		return opn_extD3(e);
	} else if ((window.name.indexOf("bswin") == -1) && (window == window.top)) {
		window.location.href =	get_href(e);
		return false;
	} else {
		return opn_extD3(e);
	}
}
function arrange_ckb(sub_elem) {
	var elem =	document.forms[0].elements[sub_elem.name];
	var ckd =	(sub_elem.checked == 1) ?	1 :	0;
	for (i = 0; i < elem.length; i++) {
		elem[i].checked =	0;
	}
	sub_elem.checked =	ckd;
}
function init_ckb(elem)	{
	if ((document.forms[0]) && (document.forms[0].elements[elem])) {
		for (i = 0; i < document.forms[0].elements[elem].length; i++) {
			document.forms[0].elements[elem][i].onclick =	function () {
				arrange_ckb(this);
			};
		}
	}
}
function pg_start() {
	var anch;
	if (!document.getElementsByTagName) {
		return true;
    }
    for (i = 0; (anch = document.getElementsByTagName("a")[i]); i++) {
    	if (anch.getAttribute("href")) {
    		if ((anch.getAttribute("href").indexOf("bild") != -1) && (window.name.indexOf("bswin") == -1)) {
            	anch.onclick =	opn_ext64;
        	} else if (anch.getAttribute("rel")) {
        		switch (anch.getAttribute("rel")) {
        		case "external_L1":
					anch.onclick =	opn_extL1;
					break;
        		case "external_Pw":
            		anch.onclick =	opn_parW;
            		break;
        		}
        	}
    	}
    }
    init_ckb("fahrzeug[]");
    init_ckb("tour[]");
    return true;
}

window.onload = pg_start;