class Thumb extends MovieClip
{
	
	// variables
	var i:Number = 0;
	var n:Number = 0;
	var nOld:Number;
	var pixNames:Array;
	var xposition:Number = 10;
	var yposition:Number = 10;
	var xWidth:Number = 50;
	var yWidth:Number = 40;
	
	var xClickArea:Array;
	var yClickArea:Array;
	
	// functions
	function onRelease ()
		{
			for (i=0; i <= (pixNames.length - 1); i++)
			{
				// calculates mouse position. this script works similiarly to a image map in HTML
				if (this._xmouse > xClickArea[i] && this._xmouse < (xClickArea[i] + xWidth) && this._ymouse > yClickArea[i] && this._ymouse < (yClickArea[i] +yWidth))
				{
					_root.main.thisImage(i);
					
				}
				
			}
			
		}
		
	
	
	
	function highLightCurrent ()
	{
		this['image'+nOld].clear ();
		
		this['image'+_root.main.n].lineStyle (5,0xff0000,100); // dynamically draws in the red highlight box
		this['image'+_root.main.n].lineTo(0,-10);
		this['image'+_root.main.n].lineTo(400,-10);
		this['image'+_root.main.n].lineTo(400,300);
		this['image'+_root.main.n].lineTo(-10,300);
		this['image'+_root.main.n].lineTo(-10,-10);
		//trace ('image'+_root.main.n);
		nOld=_root.main.n;
	}
	// frame handlers
	function onEnterFrame ()
	{	
		highLightCurrent ();
		
	}
	
	// constructor
	
	function Thumb ()
	{
		xClickArea = new Array ();
		yClickArea = new Array ();
		
		// set up thumbnails
		pixNames = new Array("beach", "beachcombers" ,"canyon","coast1", "coast2", "dawn" ,"embankment", "greenHills", "jungleSteps", "lake", "lighthouse", "lunar", "monuments", "peak1", "peak2", "daybreak", "gorge", "jetty", "palms", "river", "snow1", "snow2", "springfield", "stream", "teeth", "yacht");
		
		for (n=0; n <= (pixNames.length - 1); n++)
		{
			
			this.createEmptyMovieClip("image"+n, n)								// this script dynamically generates
			this['image'+n].loadMovie( "pix/"+pixNames[n]+".jpg","_level"+n);   // thumnails from images
			
			this['image'+n]._x = xposition;
			this['image'+n]._y = yposition;
			this['image'+n]._xscale = 10;
			this['image'+n]._yscale = 10;
			
			xClickArea[n] = xposition;
			yClickArea[n] = yposition;
			trace (n);
			
			xposition += xWidth;
			if (xposition > 500)   // if first row too wide, create next row
			{
				xposition = 10;
				yposition += yWidth;
			}
			
		}

	}
	
	
	
	
}