//
// tjpzoom 2.0 2006.0221.
// details/usage: http://valid.tjp.hu/zoom2/
//
var zoomw = 320;
var zoomh = 220;
var defzoomamount = 2;
var zoomamountstep = 1.2;
var zoomsizemin = 1000;
var zoomsizemax = 100000;
var zoomsizestep = 1.2;
var zoomamountmin = 1;
var zoomamountmax = 20;
var zoomborder = 1;
var zoomborderoricolor = "#000000";
var zoomborderhotcolor = "#ffeb00";
var tooltipstyle = "background-color:#ffffe1; border: 1px solid #000000; padding:2px; font-size: 70%; font-family: verdana,arial;";
//if you don't want to show the 'Loading...' tooltip, uncomment the following:
var tooltipstyle = "display:none";
function zoom_click() {
	if (overhotspot != 0) {
		todo = hotspots[overhotspot][4];
		if (todo.indexOf("http://") == 0) {
			document.location = todo;
		} else {
			eval(todo);
		}
	}
	return false;
}
function zoom_hidone() {
	hidone = 1;
	document.getElementById(zoomid + "_container").style.cursor = "default";
	document.getElementById(zoomid + "_tooltip").style.display = "none";
}
function zoom_set(evt) {
	var evt = evt ? evt : window.event ? window.event : null;
	if (!evt) {
		return;
	}
	if (zoomid == "" || parseInt(document.getElementById(zoomid + "_container").style.width) == 0) {
		return true;
	}
 //left:
	if (evt.keyCode == 37 || evt.keyCode == 100) {
		zoomw /= zoomsizestep;
		zoomh /= zoomsizestep;
		if (zoomw * zoomh < zoomsizemin) {
			zoomh = Math.sqrt(zoomsizemin / zoomratio);
			zoomw = zoomh * zoomratio;
		}
		zoom_init();
		zoom_move();
		return;
	}
 //right:
	if (evt.keyCode == 39 || evt.keyCode == 102) {
		zoomw *= zoomsizestep;
		zoomh *= zoomsizestep;
		if (zoomw * zoomh > zoomsizemax) {
			zoomh = Math.sqrt(zoomsizemax / zoomratio);
			zoomw = zoomh * zoomratio;
		}
		if (zoomw > objw) {
			zoomw = objw;
			zoomh = objw / zoomratio;
		} else {
			if (zoomh > objh) {
				zoomh = objh;
				zoomw = objh * zoomratio;
			}
		}
		zoom_init();
		zoom_move();
		return;
	}
 //down:
	if (evt.keyCode == 40 || evt.keyCode == 98) {
		zoomamount /= zoomamountstep;
		if (zoomamount < zoomamountmin) {
			zoomamount = zoomamountmin;
		}
		zoom_init();
		zoom_move();
		return;
	}
 //up:
	if (evt.keyCode == 38 || evt.keyCode == 104) {
		zoomamount *= zoomamountstep;
		if (zoomamount > zoomamountmax) {
			zoomamount = zoomamountmax;
		}
		zoom_init();
		zoom_move();
		return;
	}
	return;
}
function zoom_init() {
	document.getElementById(zoomid + "_clip").style.width = objw * zoomamount + "px";
	document.getElementById(zoomid + "_clip").style.height = objh * zoomamount + "px";
	eval("document.getElementById('" + zoomid + "_trigger').focus();");
}
function zoom_move(evt) {
	if (typeof (evt) == "object") {
		var evt = evt ? evt : window.event ? window.event : null;
		if (!evt) {
			return;
		}
		if (evt.pageX) {
			xx = evt.pageX - ffox;
			yy = evt.pageY - ffoy;
		} else {
			if (typeof (document.getElementById(zoomid) + 1) == "number") {
				return true;
			} //mert az ie egy ocska kurva
			xx = evt.clientX - ieox;
			yy = evt.clientY - ieoy;
		}
	} else {
		xx = lastxx;
		yy = lastyy;
	}
	lastxx = xx;
	lastyy = yy;
	
	if (hidone == 1) {
		if (overhotspot == 0) {
			for (key in hotspots) {
				if (xx >= hotspots[key][0] && yy >= hotspots[key][1] && xx <= hotspots[key][2] && yy <= hotspots[key][3]) {
					overhotspot = key;
					document.getElementById(zoomid + "_container").style.cursor = "pointer";
					if (!isopera) {
						document.getElementById(zoomid + "_tooltip").style.display = "block";
						document.getElementById(zoomid + "_tooltip").innerHTML = key;
					}
					zoombordercolor = zoomborderhotcolor;
				}
			}
		} else {
			os = 0;
			for (key in hotspots) {
				if (xx >= hotspots[key][0] && yy >= hotspots[key][1] && xx <= hotspots[key][2] && yy <= hotspots[key][3]) {
					os = 1;
				}
			}
			if (os == 0) {
				overhotspot = 0;
				zoombordercolor = zoomborderoricolor;
				document.getElementById(zoomid + "_container").style.cursor = "default";
				document.getElementById(zoomid + "_tooltip").style.display = "none";
			}
		}
	}
	if (zoomborder > 0) {
		zbl = zoomborder;
		zbt = zoomborder;
		zbl = (Math.abs(zoomw / 2 - xx) - Math.abs(zoomw / 2 - xx + zoomborder) + zoomborder) / 2;
		zbt = (Math.abs(zoomh / 2 - yy) - Math.abs(zoomh / 2 - yy + zoomborder) + zoomborder) / 2;
		zbr = (Math.abs((xx + zoomw / 2 + zbl) - objw - zoomborder) - Math.abs((xx + zoomw / 2 + zbl) - objw) + zoomborder) / 2;
		zbb = (Math.abs((yy + zoomh / 2 + zbt) - objh - zoomborder) - Math.abs((yy + zoomh / 2 + zbt) - objh) + zoomborder) / 2;
		document.getElementById(zoomid + "_clipborder").style.borderLeft = zbl + "px solid " + zoombordercolor;
		document.getElementById(zoomid + "_clipborder").style.borderTop = zbt + "px solid " + zoombordercolor;
		document.getElementById(zoomid + "_clipborder").style.borderBottom = zbb + "px solid " + zoombordercolor;
		document.getElementById(zoomid + "_clipborder").style.borderRight = zbr + "px solid " + zoombordercolor;
	} else {
		zbt = zbr = zbb = zbl = 0;
	}
	document.getElementById(zoomid + "_clip").style.margin = (((yy - zoomh / 2 > 0) ? (zoomh / 2 - yy * zoomamount) : (yy * (1 - zoomamount))) + zbt) + "px 0px 0px " + (((xx - zoomw / 2 > 0) ? (zoomw / 2 - xx * zoomamount) : (xx * (1 - zoomamount))) + zbl) + "px";
	document.getElementById(zoomid + "_container").style.margin = (((yy - zoomh / 2 > 0) ? (yy - zoomh / 2) : (0)) - zbt) + "px 0px 0px " + (((xx - zoomw / 2 > 0) ? (xx - zoomw / 2) : (0)) - zbl) + "px";
	
	document.getElementById(zoomid + "_padder").style.height = ((Math.abs(yy) - Math.abs(yy - zoomh / 2) + zoomh / 2) / 2 + zoomh / 2) + "px";
	document.getElementById(zoomid + "_padder").style.width = ((Math.abs(xx) - Math.abs(xx - zoomw / 2) + zoomw / 2) / 2 + zoomw / 2) + "px";
	w2 = ((xx + zoomw / 2 < objw) ? ((zoomw / 2 < xx) ? (zoomw) : (zoomw / 2 + xx)) : (zoomw / 2 + objw - xx));
	if (w2 < 0) {
		w2 = 0;
	}
	document.getElementById(zoomid + "_container").style.width = (w2 + zbl + zbr) + "px";
	h2 = ((yy + zoomh / 2 < objh) ? ((zbt + zoomh / 2 < yy) ? (zoomh) : (zoomh / 2 + yy)) : (zoomh / 2 + objh - yy));
	if (h2 < 0) {
		h2 = 0;
	}
	document.getElementById(zoomid + "_container").style.height = (h2 + zbt + zbb) + "px";
	
	var foo = document.getElementById("debug");
	if(foo){
		//foo.innerHTML = "Lupe: " + document.getElementById(zoomid + "_container").style.margin + "<br />Cursorposition: " +  yy;
	}
	
	
	
	
	return false;
}
function zoom_off() {
	if (zoomid != "") {
		document.getElementById(zoomid + "_container").style.width = "0px";
		document.getElementById(zoomid + "_container").style.height = "0px";
	}
	zoomid = "";
	hotspots = {};
}
function countoffset() {
	ieox = 0;
	ieoy = 0;
	for (zmi = 0; zmi < 50; zmi++) {
		zme = "document.getElementById(zoomid)";
		for (zmj = 1; zmj <= zmi; zmj++) {
			zme += ".offsetParent";
		}
		if (eval(zme) + 1 == 1) {
			zmi = 100;
		} else {
			ieox += eval(zme + ".offsetLeft");
			ieoy += eval(zme + ".offsetTop");
		}
	}
	ffox = ieox;
	ffoy = ieoy;
	ieox -= document.body.scrollLeft;
	ieoy -= document.body.scrollTop;
}
function zoom_on(evt, ow, oh, lowres, highres) {
	var evt = evt ? evt : window.event ? window.event : null;
	if (!evt) {
		return;
	}
	thisid = lowres + highres + ow + oh;
	thisid = "zoom_" + thisid.replace(/[^a-z0-9]/ig, "");
	if (zoomid == thisid) {
		return;
	}
	if (lastover == thisid) {
		zoomid = thisid;
		countoffset();
		zoom_move();
		return;
	}
	if (typeof (highres) == typeof (nemistudom)) {
		highres = lowres;
	}
	zoomamount = defzoomamount;
	objw = ow;
	objh = oh;
	zoomid = thisid;
	if (evt.pageX) {
		evt.target.parentNode.id = thisid;
		countoffset();
		lastxx = evt.pageX - ffox;
		lastyy = evt.pageY - ffoy;
	} else {
		evt.srcElement.parentNode.id = thisid;
		countoffset();
		lastxx = evt.clientX - ieox;
		lastyy = evt.clientY - ieoy;
	}
	lastover = thisid;
	document.getElementById(thisid).style.width = ow + "px";
	document.getElementById(thisid).style.height = (oh + ((isopera) ? (5) : (0))) + "px";
	document.getElementById(thisid).style.overflow = "hidden";
	document.getElementById(thisid).innerHTML = "<textarea id=\"" + thisid + "_trigger\"  style=\"font-size:1px;position:absolute;width:100px;height:" + ((isopera) ? ("4px") : ("0; filter:alpha(opacity=0);")) + ";border:0;margin:0;padding:0;overflow:hidden;z-index:0;\"/></textarea>" + "<div style=\"text-align:left;position:absolute; overflow:hidden; width:0; height:0; border:0;\" id=\"" + thisid + "_container\" onmousemove=\"zoom_move(event);\" onmouseout=\"zoom_off()\">" + "<div id=\"" + thisid + "_clipborder\" style=\"position:absolute;overflow:hidden;border:" + zoomborder + "px solid " + zoombordercolor + ";\">" + "<div style=\"width:0;height:0;overflow:hidden;\" id=\"" + thisid + "_padder\"></div>" + "</div>" + "<img src=\"" + highres + "\" alt=\"\" id=\"" + thisid + "_clip\" style=\"padding:0;margin:0;border:0;\" onload=\"zoom_hidone();\"/></div>" + "<div style=\"text-align:left;position:absolute; z-index:2;float:left; " + tooltipstyle + "\" id=\"" + thisid + "_tooltip\">Loading...</div>" + "<img src=\"" + lowres + "\" id=\"" + thisid + "_pic\" alt=\"\" style=\"padding:0;margin:0;border:0;z-index:10;width:" + ow + "px; height: " + oh + "px\"/>";
	if (zoomw > objw) {
		zoomw = objw;
		zoomh = objw / zoomratio;
	} else {
		if (zoomh > objh) {
			zoomh = objh;
			zoomw = objh * zoomratio;
		}
	}
	zoom_init();
	zoom_move("");
	document.getElementById(zoomid + "_container").style.cursor = "wait";
	hidone = 0;
	if (isopera) {
		document.onkeypress = zoom_set;
	} else {
		if (document.all) {
			document.onkeydown = zoom_set;
		} else {
			window.captureEvents(Event.KEYDOWN);
			window.onkeydown = zoom_set;
		}
	}
	return false;
}
var zoomamount = defzoomamount;
var objw;
var objh;
var zoomid = "";
var zoomratio = zoomw / zoomh;
var ieox = 0;
var ieoy = 0;
var ffox = 50;
var ffoy = 50;
var hidone = 0;
var overhotspot = 0;
var lastover = "";
var zoombordercolor = zoomborderoricolor;
if (navigator.userAgent.indexOf("Firefox/1.0") != -1) {
	zoomborder = 1;
}
var isopera = (navigator.userAgent.toLowerCase().indexOf("opera") != -1);
if (isopera) {
	defzoomamount = 2;
	zoomamountmax = 3;
	tooltipstyle = "display:none";
}
var hotspots;


var isie7 = (navigator.userAgent.toLowerCase().indexOf("msie 7") != -1);
if (isie7) {
	zoomborder = 1;
}