var jg_ok, jg_ie, jg_fast, jg_dom, jg_moz;


function _chkDHTM(x, i)
{
	x = document.body || null;
	jg_ie = x && typeof x.insertAdjacentHTML != "undefined" && document.createElement;
	jg_dom = (x && !jg_ie &&
		typeof x.appendChild != "undefined" &&
		typeof document.createRange != "undefined" &&
		typeof (i = document.createRange()).setStartBefore != "undefined" &&
		typeof i.createContextualFragment != "undefined");
	jg_fast = jg_ie && document.all && !window.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:$2;top:$3;width:$4;height:$5"></div>\n');
}

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

function _mkLin(x1, y1, x2, y2)
{
	if(x1 > x2)
	{
		var _x2 = x2;
		var _y2 = y2;
		x2 = x1;
		y2 = y1;
		x1 = _x2;
		y1 = _y2;
	}
	var dx = x2-x1, dy = Math.abs(y2-y1),
	x = x1, y = y1,
	yIncr = (y1 > y2)? -1 : 1;

	if(dx >= dy)
	{
		var pr = dy<<1,
		pru = pr - (dx<<1),
		p = pr-dx,
		ox = x;
		while(dx > 0)
		{--dx;
			++x;
			if(p > 0)
			{
				this._mkDiv(ox, y, x-ox, 1);
				y += yIncr;
				p += pru;
				ox = x;
			}
			else p += pr;
		}
		this._mkDiv(ox, y, x2-ox+1, 1);
	}

	else
	{
		var pr = dx<<1,
		pru = pr - (dy<<1),
		p = pr-dy,
		oy = y;
		if(y2 <= y1)
		{
			while(dy > 0)
			{--dy;
				if(p > 0)
				{
					this._mkDiv(x++, y, 1, oy-y+1);
					y += yIncr;
					p += pru;
					oy = y;
				}
				else
				{
					y += yIncr;
					p += pr;
				}
			}
			this._mkDiv(x2, y2, 1, oy-y2+1);
		}
		else
		{
			while(dy > 0)
			{--dy;
				y += yIncr;
				if(p > 0)
				{
					this._mkDiv(x++, oy, 1, y-oy);
					p += pru;
					oy = y;
				}
				else p += pr;
			}
			this._mkDiv(x2, oy, 1, y2-oy+1);
		}
	}
}

function _mkLin2D(x1, y1, x2, y2)
{
	if(x1 > x2)
	{
		var _x2 = x2;
		var _y2 = y2;
		x2 = x1;
		y2 = y1;
		x1 = _x2;
		y1 = _y2;
	}
	var dx = x2-x1, dy = Math.abs(y2-y1),
	x = x1, y = y1,
	yIncr = (y1 > y2)? -1 : 1;

	var s = this.stroke;
	if(dx >= dy)
	{
		if(dx > 0 && s-3 > 0)
		{
			var _s = (s*dx*Math.sqrt(1+dy*dy/(dx*dx))-dx-(s>>1)*dy) / dx;
			_s = (!(s-4)? Math.ceil(_s) : Math.round(_s)) + 1;
		}
		else var _s = s;
		var ad = Math.ceil(s/2);

		var pr = dy<<1,
		pru = pr - (dx<<1),
		p = pr-dx,
		ox = x;
		while(dx > 0)
		{--dx;
			++x;
			if(p > 0)
			{
				this._mkDiv(ox, y, x-ox+ad, _s);
				y += yIncr;
				p += pru;
				ox = x;
			}
			else p += pr;
		}
		this._mkDiv(ox, y, x2-ox+ad+1, _s);
	}

	else
	{
		if(s-3 > 0)
		{
			var _s = (s*dy*Math.sqrt(1+dx*dx/(dy*dy))-(s>>1)*dx-dy) / dy;
			_s = (!(s-4)? Math.ceil(_s) : Math.round(_s)) + 1;
		}
		else var _s = s;
		var ad = Math.round(s/2);

		var pr = dx<<1,
		pru = pr - (dy<<1),
		p = pr-dy,
		oy = y;
		if(y2 <= y1)
		{
			++ad;
			while(dy > 0)
			{--dy;
				if(p > 0)
				{
					this._mkDiv(x++, y, _s, oy-y+ad);
					y += yIncr;
					p += pru;
					oy = y;
				}
				else
				{
					y += yIncr;
					p += pr;
				}
			}
			this._mkDiv(x2, y2, _s, oy-y2+ad);
		}
		else
		{
			while(dy > 0)
			{--dy;
				y += yIncr;
				if(p > 0)
				{
					this._mkDiv(x++, oy, _s, y-oy+ad);
					p += pru;
					oy = y;
				}
				else p += pr;
			}
			this._mkDiv(x2, oy, _s, y2-oy+ad+1);
		}
	}
}

function _mkLinDott(x1, y1, x2, y2)
{
	if(x1 > x2)
	{
		var _x2 = x2;
		var _y2 = y2;
		x2 = x1;
		y2 = y1;
		x1 = _x2;
		y1 = _y2;
	}
	var dx = x2-x1, dy = Math.abs(y2-y1),
	x = x1, y = y1,
	yIncr = (y1 > y2)? -1 : 1,
	drw = true;
	if(dx >= dy)
	{
		var pr = dy<<1,
		pru = pr - (dx<<1),
		p = pr-dx;
		while(dx > 0)
		{--dx;
			if(drw) this._mkDiv(x, y, 1, 1);
			drw = !drw;
			if(p > 0)
			{
				y += yIncr;
				p += pru;
			}
			else p += pr;
			++x;
		}
	}
	else
	{
		var pr = dx<<1,
		pru = pr - (dy<<1),
		p = pr-dy;
		while(dy > 0)
		{--dy;
			if(drw) this._mkDiv(x, y, 1, 1);
			drw = !drw;
			y += yIncr;
			if(p > 0)
			{
				++x;
				p += pru;
			}
			else p += pr;
		}
	}
	if(drw) this._mkDiv(x, y, 1, 1);
}

function _mkOv(left, top, width, height)
{
	var a = (++width)>>1, b = (++height)>>1,
	wod = width&1, hod = height&1,
	cx = left+a, cy = top+b,
	x = 0, y = b,
	ox = 0, oy = b,
	aa2 = (a*a)<<1, aa4 = aa2<<1, bb2 = (b*b)<<1, bb4 = bb2<<1,
	st = (aa2>>1)*(1-(b<<1)) + bb2,
	tt = (bb2>>1) - aa2*((b<<1)-1),
	w, h;
	while(y > 0)
	{
		if(st < 0)
		{
			st += bb2*((x<<1)+3);
			tt += bb4*(++x);
		}
		else if(tt < 0)
		{
			st += bb2*((x<<1)+3) - aa4*(y-1);
			tt += bb4*(++x) - aa2*(((y--)<<1)-3);
			w = x-ox;
			h = oy-y;
			if((w&2) && (h&2))
			{
				this._mkOvQds(cx, cy, x-2, y+2, 1, 1, wod, hod);
				this._mkOvQds(cx, cy, x-1, y+1, 1, 1, wod, hod);
			}
			else this._mkOvQds(cx, cy, x-1, oy, w, h, wod, hod);
			ox = x;
			oy = y;
		}
		else
		{
			tt -= aa2*((y<<1)-3);
			st -= aa4*(--y);
		}
	}
	w = a-ox+1;
	h = (oy<<1)+hod;
	y = cy-oy;
	this._mkDiv(cx-a, y, w, h);
	this._mkDiv(cx+ox+wod-1, y, w, h);
}

function _mkOv2D(left, top, width, height)
{
	var s = this.stroke;
	width += s+1;
	height += s+1;
	var a = width>>1, b = height>>1,
	wod = width&1, hod = height&1,
	cx = left+a, cy = top+b,
	x = 0, y = b,
	aa2 = (a*a)<<1, aa4 = aa2<<1, bb2 = (b*b)<<1, bb4 = bb2<<1,
	st = (aa2>>1)*(1-(b<<1)) + bb2,
	tt = (bb2>>1) - aa2*((b<<1)-1);

	if(s-4 < 0 && (!(s-2) || width-51 > 0 && height-51 > 0))
	{
		var ox = 0, oy = b,
		w, h,
		pxw;
		while(y > 0)
		{
			if(st < 0)
			{
				st += bb2*((x<<1)+3);
				tt += bb4*(++x);
			}
			else if(tt < 0)
			{
				st += bb2*((x<<1)+3) - aa4*(y-1);
				tt += bb4*(++x) - aa2*(((y--)<<1)-3);
				w = x-ox;
				h = oy-y;

				if(w-1)
				{
					pxw = w+1+(s&1);
					h = s;
				}
				else if(h-1)
				{
					pxw = s;
					h += 1+(s&1);
				}
				else pxw = h = s;
				this._mkOvQds(cx, cy, x-1, oy, pxw, h, wod, hod);
				ox = x;
				oy = y;
			}
			else
			{
				tt -= aa2*((y<<1)-3);
				st -= aa4*(--y);
			}
		}
		this._mkDiv(cx-a, cy-oy, s, (oy<<1)+hod);
		this._mkDiv(cx+a+wod-s, cy-oy, s, (oy<<1)+hod);
	}

	else
	{
		var _a = (width-(s<<1))>>1,
		_b = (height-(s<<1))>>1,
		_x = 0, _y = _b,
		_aa2 = (_a*_a)<<1, _aa4 = _aa2<<1, _bb2 = (_b*_b)<<1, _bb4 = _bb2<<1,
		_st = (_aa2>>1)*(1-(_b<<1)) + _bb2,
		_tt = (_bb2>>1) - _aa2*((_b<<1)-1),

		pxl = new Array(),
		pxt = new Array(),
		_pxb = new Array();
		pxl[0] = 0;
		pxt[0] = b;
		_pxb[0] = _b-1;
		while(y > 0)
		{
			if(st < 0)
			{
				pxl[pxl.length] = x;
				pxt[pxt.length] = y;
				st += bb2*((x<<1)+3);
				tt += bb4*(++x);
			}
			else if(tt < 0)
			{
				pxl[pxl.length] = x;
				st += bb2*((x<<1)+3) - aa4*(y-1);
				tt += bb4*(++x) - aa2*(((y--)<<1)-3);
				pxt[pxt.length] = y;
			}
			else
			{
				tt -= aa2*((y<<1)-3);
				st -= aa4*(--y);
			}

			if(_y > 0)
			{
				if(_st < 0)
				{
					_st += _bb2*((_x<<1)+3);
					_tt += _bb4*(++_x);
					_pxb[_pxb.length] = _y-1;
				}
				else if(_tt < 0)
				{
					_st += _bb2*((_x<<1)+3) - _aa4*(_y-1);
					_tt += _bb4*(++_x) - _aa2*(((_y--)<<1)-3);
					_pxb[_pxb.length] = _y-1;
				}
				else
				{
					_tt -= _aa2*((_y<<1)-3);
					_st -= _aa4*(--_y);
					_pxb[_pxb.length-1]--;
				}
			}
		}

		var ox = -wod, oy = b,
		_oy = _pxb[0],
		l = pxl.length,
		w, h;
		for(var i = 0; i < l; i++)
		{
			if(typeof _pxb[i] != "undefined")
			{
				if(_pxb[i] < _oy || pxt[i] < oy)
				{
					x = pxl[i];
					this._mkOvQds(cx, cy, x, oy, x-ox, oy-_oy, wod, hod);
					ox = x;
					oy = pxt[i];
					_oy = _pxb[i];
				}
			}
			else
			{
				x = pxl[i];
				this._mkDiv(cx-x, cy-oy, 1, (oy<<1)+hod);
				this._mkDiv(cx+ox+wod, cy-oy, 1, (oy<<1)+hod);
				ox = x;
				oy = pxt[i];
			}
		}
		this._mkDiv(cx-a, cy-oy, 1, (oy<<1)+hod);
		this._mkDiv(cx+ox+wod, cy-oy, 1, (oy<<1)+hod);
	}
}

function _mkOvDott(left, top, width, height)
{
	var a = (++width)>>1, b = (++height)>>1,
	wod = width&1, hod = height&1, hodu = hod^1,
	cx = left+a, cy = top+b,
	x = 0, y = b,
	aa2 = (a*a)<<1, aa4 = aa2<<1, bb2 = (b*b)<<1, bb4 = bb2<<1,
	st = (aa2>>1)*(1-(b<<1)) + bb2,
	tt = (bb2>>1) - aa2*((b<<1)-1),
	drw = true;
	while(y > 0)
	{
		if(st < 0)
		{
			st += bb2*((x<<1)+3);
			tt += bb4*(++x);
		}
		else if(tt < 0)
		{
			st += bb2*((x<<1)+3) - aa4*(y-1);
			tt += bb4*(++x) - aa2*(((y--)<<1)-3);
		}
		else
		{
			tt -= aa2*((y<<1)-3);
			st -= aa4*(--y);
		}
		if(drw && y >= hodu) this._mkOvQds(cx, cy, x, y, 1, 1, wod, hod);
		drw = !drw;
	}
}

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();


//¹¹Ô캯Êý
function jsGraphics(cnv, wnd)
{
	
	this.setColor = function(x)
	{
		this.color = x.toLowerCase();
	};

	this.setStroke = function(x)
	{
		this.stroke = x;
		if(!(x+1))
		{
			this.drawLine = _mkLinDott;
			this._mkOv = _mkOvDott;
			this.drawRect = _mkRectDott;
		}
		else if(x-1 > 0)
		{
			this.drawLine = _mkLin2D;
			this._mkOv = _mkOv2D;
			this.drawRect = _mkRect;
		}
		else
		{
			this.drawLine = _mkLin;
			this._mkOv = _mkOv;
			this.drawRect = _mkRect;
		}
	};

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

	this._mkOvQds = function(cx, cy, x, y, w, h, wod, hod)
	{
		var xl = cx - x, xr = cx + x + wod - w, yt = cy - y, yb = cy + y + hod - h;
		if(xr > xl+w)
		{
			this._mkDiv(xr, yt, w, h);
			this._mkDiv(xr, yb, w, h);
		}
		else
			w = xr - xl + w;
		this._mkDiv(xl, yt, w, h);
		this._mkDiv(xl, yb, w, h);
	};
	
	this._mkArcDiv = function(x, y, oy, cx, cy, iOdds, aBndA, aBndZ, iSects)
	{
		var xrDef = cx + x + (iOdds & 0xffff), y2, h = oy - y, xl, xr, w;

		if(!h) h = 1;
		x = cx - x;

		if(iSects & 0xff0000) // Start-angle > end-angle
		{
			y2 = cy - y - h;
			if(iSects & 0x00ff)
			{
				if(iSects & 0x02)
				{
					xl = Math.max(x, aBndZ[y]);
					w = xrDef - xl;
					if(w > 0) this._mkDiv(xl, y2, w, h);
				}
				if(iSects & 0x01)
				{
					xr = Math.min(xrDef, aBndA[y]);
					w = xr - x;
					if(w > 0) this._mkDiv(x, y2, w, h);
				}
			}
			else
				this._mkDiv(x, y2, xrDef - x, h);
			y2 = cy + y + (iOdds >> 16);
			if(iSects & 0xff00)
			{
				if(iSects & 0x0100)
				{
					xl = Math.max(x, aBndA[y]);
					w = xrDef - xl;
					if(w > 0) this._mkDiv(xl, y2, w, h);
				}
				if(iSects & 0x0200)
				{
					xr = Math.min(xrDef, aBndZ[y]);
					w = xr - x;
					if(w > 0) this._mkDiv(x, y2, w, h);
				}
			}
			else
				this._mkDiv(x, y2, xrDef - x, h);
		}
		else
		{
			if(iSects & 0x00ff)
			{
				if(iSects & 0x02)
					xl = Math.max(x, aBndZ[y]);
				else
					xl = x;
				if(iSects & 0x01)
					xr = Math.min(xrDef, aBndA[y]);
				else
					xr = xrDef;
				y2 = cy - y - h;
				w = xr - xl;
				if(w > 0) this._mkDiv(xl, y2, w, h);
			}
			if(iSects & 0xff00)
			{
				if(iSects & 0x0100)
					xl = Math.max(x, aBndA[y]);
				else
					xl = x;
				if(iSects & 0x0200)
					xr = Math.min(xrDef, aBndZ[y]);
				else
					xr = xrDef;
				y2 = cy + y + (iOdds >> 16);
				w = xr - xl;
				if(w > 0) this._mkDiv(xl, y2, w, h);
			}
		}
	};

	this.setStroke(1);
	this.setFont("verdana,geneva,helvetica,sans-serif", "12px", Font.PLAIN);
	this.color = "#000000";
	this.htm = "";
	this.wnd = wnd || window;

	if(!jg_ok) _chkDHTM();
	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];
			// If cnv is a direct reference to a canvas DOM node
			// (option suggested by Andreas Luleich)
			else this.cont = cnv;
			// Create new canvas inside container DIV. Thus the drawing and clearing
			// methods won't interfere with the container's inner html.
			// Solution suggested by Vladimir.
			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);
}

function _mkLinVirt(aLin, x1, y1, x2, y2)
{
	var dx = Math.abs(x2-x1), dy = Math.abs(y2-y1),
	x = x1, y = y1,
	xIncr = (x1 > x2)? -1 : 1,
	yIncr = (y1 > y2)? -1 : 1,
	p,
	i = 0;
	if(dx >= dy)
	{
		var pr = dy<<1,
		pru = pr - (dx<<1);
		p = pr-dx;
		while(dx > 0)
		{--dx;
			if(p > 0)    //  Increment y
			{
				aLin[i++] = x;
				y += yIncr;
				p += pru;
			}
			else p += pr;
			x += xIncr;
		}
	}
	else
	{
		var pr = dx<<1,
		pru = pr - (dy<<1);
		p = pr-dy;
		while(dy > 0)
		{--dy;
			y += yIncr;
			aLin[i++] = x;
			if(p > 0)    //  Increment x
			{
				x += xIncr;
				p += pru;
			}
			else p += pr;
		}
	}
	for(var len = aLin.length, i = len-i; i;)
		aLin[len-(i--)] = x;
};

function _CompInt(x, y)
{
	return(x - y);
}