browserName=navigator.appName;
browserVer=parseInt(navigator.appVersion);
if(browserVer >=3)
        version="3";
else
        version="2";
		
if (version=="3")
{

y1_on=new Image(25,230);
y1_on.src="ic/01_on.jpg";
y1_off=new Image(25,230);
y1_off.src="ic/01_off.jpg";

y2_on=new Image(25,230);
y2_on.src="ic/02_on.jpg";
y2_off=new Image(25,230);
y2_off.src="ic/02_off.jpg";

y3_on=new Image(25,230);
y3_on.src="ic/03_on.jpg";
y3_off=new Image(25,230);
y3_off.src="ic/03_off.jpg";

y4_on=new Image(25,230);
y4_on.src="ic/04_on.jpg";
y4_off=new Image(25,230);
y4_off.src="ic/04_off.jpg";

y5_on=new Image(25,230);
y5_on.src="ic/05_on.jpg";
y5_off=new Image(25,230);
y5_off.src="ic/05_off.jpg";

y6_on=new Image(25,230);
y6_on.src="ic/06_on.jpg";
y6_off=new Image(25,230);
y6_off.src="ic/06_off.jpg";

y7_on=new Image(25,230);
y7_on.src="ic/07_on.jpg";
y7_off=new Image(25,230);
y7_off.src="ic/07_off.jpg";

y8_on=new Image(25,230);
y8_on.src="ic/08_on.jpg";
y8_off=new Image(25,230);
y8_off.src="ic/08_off.jpg";

y9_on=new Image(25,230);
y9_on.src="ic/09_on.jpg";
y9_off=new Image(25,230);
y9_off.src="ic/09_off.jpg";

y10_on=new Image(25,230);
y10_on.src="ic/10_on.jpg";
y10_off=new Image(25,230);
y10_off.src="ic/10_off.jpg";

}
function rollIn(imgName)
{
        if (version=="3")
        {
                document[imgName].src=eval(imgName + "on.src");
        }
}
function rollOut(imgName)
{
        if (version=="3")
        {
                document[imgName].src=eval(imgName + "off.src");
        }
}