bJeStisknuto = false;

function ZacatekPresunu()
{
	if (TabulkaZobrazena())
		bJeStisknuto = true;
}

function TabulkaZobrazena()
{
	return true;

	// toto ne úplnì dobøe funguje...
	if (document.getElementById("tabulka"))
		if (document.getElementById("tabulka").style.visibility == 'visible')
			return true;
			
	return false;
}

function PohybMysi(e)
{
	if (bJeStisknuto)
	{
		if ( (navigator.appName == "Microsoft Internet Explorer") || (navigator.appName == "Opera") )
		{
			document.getElementById("tabulka").style.left = window.event.x-100;
			document.getElementById("tabulka").style.top = window.event.y-15;
		}
		else if (navigator.appName == "Netscape")
		{
			document.getElementById("tabulka").style.left = e.pageX-100;
			document.getElementById("tabulka").style.top = e.pageY-15;
		}
	}
}

function UkonceniPresunu()
{
	if (bJeStisknuto)
	{
		bJeStisknuto = false;
		
		if(document.getElementById("tabulka").style.left < "0" && document.getElementById("tabulka").style.left != "")
			document.getElementById("tabulka").style.left = 0;
		if(document.getElementById("tabulka").style.top < "0" && document.getElementById("tabulka").style.top != "")
			document.getElementById("tabulka").style.top = 0;
	}
}

function SkryjTabulku()
{
	if (document.getElementById("tabulka"))
		document.getElementById("tabulka").style.visibility = 'hidden';
}

function ZobrazTabulku()
{
	if (document.getElementById("tabulka"))
	{
		document.getElementById("tabulka").style.visibility = 'visible';
		return false;
	}
}

function ZobrazPodrobnosti()
{
	var oImage = objGet("image");
	if (oImage && oImage.src)
	{
		oImage.src = "images/IconInformation.bmp"
	}
	
	objDisplay("text", false);
	objDisplay("textex", true);
	objDisplay("Ano", false);
	objDisplay("Ne", false);
	objDisplay("OK", true);
}

function PriradFunkce()
{
	document.onmousemove = PohybMysi;
	document.onmouseup = UkonceniPresunu;
//	document.onkeypress = alert("xXx");

//	if (document.getElementById('tabulka'))
//	{
//		document.getElementById("hlavicka").onmousedown = Hlavicka_onMouseDown;
//		document.getElementById("krizek").onclick = SkryjTabulku;
//		document.getElementById("OK").onclick = SkryjTabulku;
//	}
//	document.getElementById("ukaz").onclick = ZobrazTabulku;
}

function objGet(sObjId)
{
	if (typeof sObjId != 'string') return sObjId;
	else if (Boolean(document.getElementById)) return document.getElementById(sObjId);
	else if (Boolean(document.all)) return eval('document.all.'+sObjId);
	else return null;
}

function objSetStyle(obj,prop,val)
{
	var o = objGet(obj);
	if (o && o.style)
	{
		eval ('o.style.'+prop+'="'+val+'"');
		return true;
	}
	else return false;
}

function objShow(obj,on)
{
	return objSetStyle(obj,'visibility',(on) ? 'visible':'hidden');
}

function objDisplay(obj,on,type)
{
	if (on && !type) type = 'block';
	return objSetStyle(obj,'display',(on) ? type:'none');
}

window.onload = PriradFunkce;