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<%@ page contentType="image/jpeg" import="java.awt.*,
java.awt.image.*,java.util.*,javax.imageio.*" %>
<%!
Color getRandColor(int fc,int bc){//
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         Random random = new Random();
         if(fc>255) fc=255;
         if(bc>255) bc=255;
         int r=fc+random.nextInt(bc-fc);
         int g=fc+random.nextInt(bc-fc);
         int b=fc+random.nextInt(bc-fc);
         return new Color(r,g,b);
         }
%>
<%
//
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response.setHeader("Pragma","No-cache");
response.setHeader("Cache-Control","no-cache");
response.setDateHeader("Expires", 0);
//
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int width=60, height=20;
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
//
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Graphics g = image.getGraphics();
//
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Random random = new Random();
//
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g.setColor(getRandColor(200,250));
g.fillRect(0, 0, width, height);
//
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g.setFont(new Font("Times New Roman",Font.PLAIN,18));
//
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//
g.setColor(new Color());
//
g.drawRect(0,0,width-1,height-1);
//
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g.setColor(getRandColor(160,200));
for (int i=0;i<155;i++)
{
int x = random.nextInt(width);
int y = random.nextInt(height);
         int xl = random.nextInt(12);
         int yl = random.nextInt(12);
g.drawLine(x,y,x+xl,y+yl);
}
//
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String sRand="";
for (int i=0;i<4;i++