import java.awt.*;

public class EnvironmentApplet extends java.applet.Applet {

	private Checkbox rbIE4;
	private Checkbox rbNE4;
	private Checkbox rbIE3;
	private Checkbox rbNE3;
	private Checkbox rbOther;

	public void init()
	{
	 	CheckboxGroup cbg = new CheckboxGroup();
		Panel pnFields = new Panel(new GridLayout(2, 1));
		// Version 4.0 Browsers
		rbIE4 = new Checkbox("Internet Explorer 4.0", cbg, false);
		rbIE4.setEnabled(false);
		pnFields.add(rbIE4);		
		rbNE4 = new Checkbox("Netscape 4.0", cbg, false);
		rbNE4.setEnabled(false);
		pnFields.add(rbNE4);
		// Version 3.0 Browsers
		rbIE3 = new Checkbox("Internet Explorer 3.0", cbg, false);
		rbIE3.setEnabled(false);
		pnFields.add(rbIE3);		
		rbNE3 = new Checkbox("Netscape 3.0", cbg, false);
		rbNE3.setEnabled(false);
		pnFields.add(rbNE3);
		// Other browsers
		rbOther = new Checkbox("Other", cbg, false);
		rbOther.setEnabled(false);
		pnFields.add(rbOther);
		this.add(pnFields);
	}
	public void setIE4(boolean b) {
		this.rbIE4.setState(b);
	}	
	public void setNE4(boolean b) {
		this.rbNE4.setState(b);
	}
	public void setIE3(boolean b) {
		this.rbIE3.setState(b);
	}	
	public void setNE3(boolean b) {
		this.rbNE3.setState(b);
	}
	public void setOther(boolean b) {
		this.rbOther.setState(b);
	}
}