// Copyright © 2000 by Apple Computer, Inc., All Rights Reserved.
//
// You may incorporate this Apple sample code into your own code
// without restriction. This Apple sample code has been provided "AS IS"
// and the responsibility for its operation is yours. You may redistribute
// this code, but you are not permitted to redistribute it as
// "Apple sample code" after having made changes.
// ********************************
// application-specific functions *
// ********************************

// store variables to control where the popup will appear relative to the cursor position
// positive numbers are below and to the right of the cursor, negative numbers are above and to the left
var xOffset = 30;
var yOffset = -30;

function showPopup1(srcName,event) {
  var x=0;
  var y=0;
	if (document.getElementById) {
		anchorImage = document.getElementById('a'+srcName);
		if (anchorImage) {
			aPos = getAbsOffsetOnPage(anchorImage);
			x = aPos[0];
			y = aPos[1];
		}
		// Höhe des Layers ermitteln, durch ein <a tag mit id> das als letztes im layer ist
		ah = document.getElementById('ah'+srcName);
		if (ah) {
			aHeight = getRelOffsetOnPage(ah);
			nLayerHeight = aHeight[1];
		}
	} else {	// NS 4 findet nur Anchors
		if(document.layers)	{
			a = document.anchors['a'+srcName];
			x = a.x;
			y = a.y;
			eval("nLayerHeight = document.layers['c"+srcName+"'].clip.height;");
		}
	}
	// als Fallback integrieren, falls xPos/yPos nicht gesetzt werden konnten
	actualHoverEvent = event;
	if (!x) {
		if (actualHoverEvent.pageX) {
			x = actualHoverEvent.pageX;
		} else if (actualHoverEvent.clientX) {
			x = actualHoverEvent.clientX + document.body.scrollLeft;
		}
	}
	if (!y) {
		if (actualHoverEvent.pageY) {
			y = actualHoverEvent.pageY;
		} else if (actualHoverEvent.clientY) {
			y = actualHoverEvent.clientY + document.body.scrollTop;
		}
	}

	// added by mak 2005-03-08
	var objWidth = document.getElementById('c' + srcName).offsetWidth;
	var wideLayerModifier = (objWidth > nLayerXModifier) ? objWidth + nLayerXModifier : 0;
	x = x + nLayerXModifier - wideLayerModifier;
	y = y + nLayerYModifier;
	if (nLayerHeight != null) y -= (nLayerHeight / 2);

	moveObjectOnScreen('c'+srcName, x, y);

	changeObjectVisibility('c'+srcName, 'visible');
	actualOpenNavPointLayer = 'c'+srcName;

}

function showPopup (targetObjectId, eventObj) {
    if(eventObj) {
	// hide any currently-visible popups
	hideCurrentPopup();
	// stop event from bubbling up any farther
	eventObj.cancelBubble = true;
	// move popup div to current cursor position 
	// (add scrollTop to account for scrolling for IE)
	var newXCoordinate = (eventObj.pageX)?eventObj.pageX + xOffset:eventObj.x + xOffset + ((document.body.scrollLeft)?document.body.scrollLeft:0);
	var newYCoordinate = (eventObj.pageY)?eventObj.pageY + yOffset:eventObj.y + yOffset + ((document.body.scrollTop)?document.body.scrollTop:0);
	moveObject(targetObjectId, newXCoordinate, newYCoordinate);
	// and make it visible
	if( changeObjectVisibility(targetObjectId, 'visible') ) {
	    // if we successfully showed the popup
	    // store its Id on a globally-accessible object
	    window.currentlyVisiblePopup = targetObjectId;
	    return true;
	} else {
	    // we couldn't show the popup, boo hoo!
	    return false;
	}
    } else {
	// there was no event object, so we won't be able to position anything, so give up
	return false;
    }
} // showPopup

function hideCurrentPopup() {
    // note: we've stored the currently-visible popup on the global object window.currentlyVisiblePopup
    if(window.currentlyVisiblePopup) {
	changeObjectVisibility(window.currentlyVisiblePopup, 'hidden');
	window.currentlyVisiblePopup = false;
    }
} // hideCurrentPopup



// ***********************
// hacks and workarounds *
// ***********************

// initialize hacks whenever the page loads
window.onload = initializeHacks;

// setup an event handler to hide popups for generic clicks on the document
document.onclick = hideCurrentPopup;

function initializeHacks() {
    // this ugly little hack resizes a blank div to make sure you can click
    // anywhere in the window for Mac MSIE 5
    if ((navigator.appVersion.indexOf('MSIE 5') != -1) 
	&& (navigator.platform.indexOf('Mac') != -1)
	&& getStyleObject('blankDiv')) {
	window.onresize = explorerMacResizeFix;
    }
    resizeBlankDiv();
    // this next function creates a placeholder object for older browsers
    createFakeEventObj();
}

function createFakeEventObj() {
    // create a fake event object for older browsers to avoid errors in function call
    // when we need to pass the event object to functions
    if (!window.event) {
	window.event = false;
    }
} // createFakeEventObj

function resizeBlankDiv() {
    // resize blank placeholder div so IE 5 on mac will get all clicks in window
    if ((navigator.appVersion.indexOf('MSIE 5') != -1) 
	&& (navigator.platform.indexOf('Mac') != -1)
	&& getStyleObject('blankDiv')) {
	getStyleObject('blankDiv').width = document.body.clientWidth - 20;
	getStyleObject('blankDiv').height = document.body.clientHeight - 20;
    }
}

function explorerMacResizeFix () {
    location.reload(false);
}