var zoomw = 120;
var zoomh = 150;
var defzoomamount = 3;

var zoomamountstep = 1.1;
var zoomsizemin = 1000;
var zoomsizemax = 100000;
var zoomsizestep = 1.2;
var zoomamountmin = 1;
var zoomamountmax = 12;
var zoomborder = 8;
var zoomborderoricolor = '#000000';
var zoomborderhotcolor='#ffeb00';
var tooltipstyle = 'background-color: #ffffe1; border: 1px solid #000000; padding: 2px; font-size: 100%; font-family: verdana,arial; font-weight: bold;';

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;
	}

	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;
	}
	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;
	}
	if(evt.keyCode==40 || evt.keyCode==98) 
	{
		zoomamount /= zoomamountstep;
		if(zoomamount < zoomamountmin)
		{
			zoomamount = zoomamountmin;
		}
		zoom_init();
		zoom_move();
		return;
	}

	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;
			}
			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 = hotspots[key][5];
					}
					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) ? (0) : (0)) - zbt) + 'px 0px 0px ' + (((xx - zoomw / 2 > 0) ? (0) : (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';
	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">Laster Inn...</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 = 0;
var ffoy = 0;
var hidone = 0;
var overhotspot = 0;
var lastover = '';
var zoombordercolor = zoomborderoricolor;
if(navigator.userAgent.indexOf('Firefox/1.0') != -1)
{
	zoomborder = 0;
}
var isopera = (navigator.userAgent.toLowerCase().indexOf('opera') != -1);
if(isopera)
{
	defzoomamount = 2;
	zoomamountmax = 3;
	tooltipstyle = 'display:none';
}
var hotspots;