var jg_ok, jg_ie, jg_fast, jg_dom, jg_moz;


function _chkDHTM(wnd, x, i)
// Under XUL, owner of 'document' must be specified explicitly
{
	x = wnd.document.body || null;
	jg_ie = x && typeof x.insertAdjacentHTML != "undefined" && wnd.document.createElement;
	jg_dom = (x && !jg_ie &&
		typeof x.appendChild != "undefined" &&
		typeof wnd.document.createRange != "undefined" &&
		typeof (i = wnd.document.createRange()).setStartBefore != "undefined" &&
		typeof i.createContextualFragment != "undefined");
	jg_fast = jg_ie && wnd.document.all && !wnd.opera;
	jg_moz = jg_dom && typeof x.style.MozOpacity != "undefined";
	jg_ok = !!(jg_ie || jg_dom);
}

function _pntCnvDom()
{
	var x = this.wnd.document.createRange();
	x.setStartBefore(this.cnv);
	x = x.createContextualFragment(jg_fast? this._htmRpc() : this.htm);
	if(this.cnv) this.cnv.appendChild(x);
	this.htm = "";
}

function _pntCnvIe()
{
	if(this.cnv) this.cnv.insertAdjacentHTML("BeforeEnd", jg_fast? this._htmRpc() : this.htm);
	this.htm = "";
}

function _pntDoc()
{
	this.wnd.document.write(jg_fast? this._htmRpc() : this.htm);
	this.htm = '';
}

function _pntN()
{
	;
}

function _mkDiv(x, y, w, h)
{
	this.htm += '<div style="position:absolute;'+
		'left:' + x + 'px;'+
		'top:' + y + 'px;'+
		'width:' + w + 'px;'+
		'height:' + h + 'px;'+
		'clip:rect(0,'+w+'px,'+h+'px,0);'+
		'background-color:' + this.color +
		(!jg_moz? ';overflow:hidden' : '')+
		';"><\/div>';
}

function _mkDivIe(x, y, w, h)
{
	this.htm += '%%'+this.color+';'+x+';'+y+';'+w+';'+h+';';
}

function _mkDivPrt(x, y, w, h)
{
	this.htm += '<div style="position:absolute;'+
		'border-left:' + w + 'px solid ' + this.color + ';'+
		'left:' + x + 'px;'+
		'top:' + y + 'px;'+
		'width:0px;'+
		'height:' + h + 'px;'+
		'clip:rect(0,'+w+'px,'+h+'px,0);'+
		'background-color:' + this.color +
		(!jg_moz? ';overflow:hidden' : '')+
		';"><\/div>';
}

var _regex =  /%%([^;]+);([^;]+);([^;]+);([^;]+);([^;]+);/g;
function _htmRpc()
{
	return this.htm.replace(
		_regex,
		'<div style="overflow:hidden;position:absolute;background-color:'+
		'$1;left:$2px;top:$3px;width:$4px;height:$5px"></div>\n');
}

function _htmPrtRpc()
{
	return this.htm.replace(
		_regex,
		'<div style="overflow:hidden;position:absolute;background-color:'+
		'$1;left:$2px;top:$3px;width:$4px;height:$5px;border-left:$4px solid $1"></div>\n');
}




function _mkRect(x, y, w, h)
{
	var s = this.stroke;
	this._mkDiv(x, y, w, s);
	this._mkDiv(x+w, y, s, h);
	this._mkDiv(x, y+h, w+s, s);
	this._mkDiv(x, y+s, s, h-s);
}

function _mkRectDott(x, y, w, h)
{
	this.drawLine(x, y, x+w, y);
	this.drawLine(x+w, y, x+w, y+h);
	this.drawLine(x, y+h, x+w, y+h);
	this.drawLine(x, y, x, y+h);
}

function jsgFont()
{
	this.PLAIN = 'font-weight:normal;';
	this.BOLD = 'font-weight:bold;';
	this.ITALIC = 'font-style:italic;';
	this.ITALIC_BOLD = this.ITALIC + this.BOLD;
	this.BOLD_ITALIC = this.ITALIC_BOLD;
}
var Font = new jsgFont();

function jsgStroke()
{
	this.DOTTED = -1;
}
var Stroke = new jsgStroke();

function TileCanvas(cnv, wnd)
{
	this.setColor = function(x)
	{
		this.color = x.toLowerCase();
	};



	this.setPrintable = function(arg)
	{
		this.printable = arg;
		if(jg_fast)
		{
			this._mkDiv = _mkDivIe;
			this._htmRpc = arg? _htmPrtRpc : _htmRpc;
		}
		else this._mkDiv = arg? _mkDivPrt : _mkDiv;
	};

	this.setFont = function(fam, sz, sty)
	{
		this.ftFam = fam;
		this.ftSz = sz;
		this.ftSty = sty || Font.PLAIN;
	};



	this.zz = function(imgSrc, x, y, w, h, a)
	{
		var theOrder=5, thec1="";
		
		thec1=imgSrc.substring(0,1);
		if (thec1=='s' || thec1=='r')
		{
			theOrder=20;
		}
		
		this.htm += '<div style="position:absolute;z-index:' + theOrder + ';'+
			'left:' + x + 'px;top:' + y + 'px;'+
			(w? ('width:' +  w + 'px;') : '') +
			(h? ('height:' + h + 'px;'):'')+'">'+
			'<img src="../t/' + imgSrc +'"'+ (w ? (' width="' + w + '"'):'')+ (h ? (' height="' + h + '"'):'') + (a? (' '+a) : '') + '>'+
			'<\/div>';
	};

	this.clear = function()
	{
		this.htm = "";
		if(this.cnv) this.cnv.innerHTML = "";
	};

	
	this.setFont("verdana,geneva,helvetica,sans-serif", "12px", Font.PLAIN);
	this.color = "#000000";
	this.htm = "";
	this.wnd = wnd || window;

	if(!jg_ok) _chkDHTM(this.wnd);
	if(jg_ok)
	{
		if(cnv)
		{
			if(typeof(cnv) == "string")
				this.cont = document.all? (this.wnd.document.all[cnv] || null)
					: document.getElementById? (this.wnd.document.getElementById(cnv) || null)
					: null;
			else if(cnv == window.document)
				this.cont = document.getElementsByTagName("body")[0];
			else this.cont = cnv;
			this.cnv = this.wnd.document.createElement("div");
			this.cnv.style.fontSize=0;
			this.cont.appendChild(this.cnv);
			this.paint = jg_dom? _pntCnvDom : _pntCnvIe;
		}
		else
			this.paint = _pntDoc;
	}
	else
		this.paint = _pntN;

	this.setPrintable(false);
}