var marker_loc_x = 16;
var marker_loc_y = 16;

var group_flags = new Array();
var obj_arr = new Array();

function setLocator(x, y, src, alt, el_map_id, el_loc_id) {
	var el = document.getElementById(el_map_id);
	el.src = src;
	el.alt = alt;
	
	var m_x = findPosX(el);
	var m_y = findPosY(el);
	
	var loc = document.getElementById(el_loc_id);
	loc.style.left  = '' + (m_x + x - marker_loc_x) + 'px';
	loc.style.top = '' + (m_y + y - marker_loc_y) + 'px';
	loc.style.display = "block";
}

function findPosX(obj) {
	var curleft = 0;
	if (obj.offsetParent) {
		while (obj.offsetParent) {
			curleft += obj.offsetLeft
			obj = obj.offsetParent;
		}
	}
	else if (obj.x)	curleft += obj.x;
	return curleft;
}

function findPosY(obj) {
	var curtop = 0;
	if (obj.offsetParent) {
		while (obj.offsetParent) {
			curtop += obj.offsetTop
			obj = obj.offsetParent;
		}
	}
	else if (obj.y) curtop += obj.y;
	return curtop;
}

// e : Objekt der Klasse "cMouseEvent"
function moveCoord(e) {
	var x = e.absCrds.x;
	var y = e.absCrds.y;
	
	var kat_id = obj_arr[e.refObj];
	
	var el = document.getElementById("kkCoordMap_" + kat_id);
	document.forms["kkCoordDebug_" + kat_id].elements["x_img"].value = (x - findPosX(el));
	document.forms["kkCoordDebug_" + kat_id].elements["y_img"].value = (y - findPosY(el));
	
	var marker = document.getElementById("kkCoordLoc_messung_" + kat_id);
	marker.style.left  = '' + (x - marker_loc_x) + 'px';
	marker.style.top = '' + (y - marker_loc_y) + 'px';
	marker.style.display = "block";
}





/* Gruppen AUF- bzw. ZUklappen */
function groupSwitch(id, src, alt, el_map_id, el_loc_id) {
	var img = document.getElementById('group_nav_img_' + id);
	var key = 'key_' + id;
	var entries = document.getElementById('entries_' + id);
	
	var el = document.getElementById(el_map_id);
	el.src = src;
	el.alt = alt;
	
	var loc = document.getElementById(el_loc_id);
	loc.style.display = "none";
	
	// Flag bestimmen
	if (is_key(key, group_flags)) {
		if (group_flags[key] == 'on') {
			group_flags[key] = 'off';
		}
		else {
			group_flags[key] = 'on';
		}
	}
	else {
		group_flags[key] = 'on';
	}
	
	// Entsprechend verhalten
	switch(group_flags[key]) {
		case 'on':
			img.src = 'dateien/coord/minus.gif';
			entries.style.display = 'block';
			
			break;
		case 'off':
			img.src = 'dateien/coord/plus.gif';
			entries.style.display = 'none';
			break;
	}
	
}

function is_key(key, arr) {
	for (var tkey in arr) {
		if (key == tkey) return true;
	}
	return false;
}