if (document.images)
        {
                btn1a=new Image()
                btn1a.src="../inc/images/btn1.gif"
                btn1b=new Image()
                btn1b.src="../inc/images/btn1a.gif"

                btn2a=new Image()
                btn2a.src="../inc/images/btn2.gif"
                btn2b=new Image()
                btn2b.src="../inc/images/btn2a.gif"

                btn3a=new Image()
                btn3a.src="../inc/images/btn3.gif"
                btn3b=new Image()
                btn3b.src="../inc/images/btn3a.gif"

                btn4a=new Image()
                btn4a.src="../inc/images/btn4.gif"
                btn4b=new Image()
                btn4b.src="../inc/images/btn4a.gif"

                btn5a=new Image()
                btn5a.src="../inc/images/btn5.gif"
                btn5b=new Image()
                btn5b.src="../inc/images/btn5a.gif"

                btn6a=new Image()
                btn6a.src="../inc/images/btn6.gif"
                btn6b=new Image()
                btn6b.src="../inc/images/btn6a.gif"

                btn7a=new Image()
                btn7a.src="../inc/images/btn7.gif"
                btn7b=new Image()
                btn7b.src="../inc/images/btn7a.gif"

		btn8a=new Image()
                btn8a.src="../inc/images/btn8.gif"
                btn8b=new Image()
                btn8b.src="../inc/images/btn8a.gif"

 		btn9a=new Image()
                btn9a.src="../inc/images/btn9.gif"
                btn9b=new Image()
                btn9b.src="../inc/images/btn9a.gif"

 		btn10a=new Image()
                btn10a.src="../inc/images/btn10.gif"
                btn10b=new Image()
                btn10b.src="../inc/images/btn10a.gif"

 		btn11a=new Image()
                btn11a.src="../inc/images/btn11.gif"
                btn11b=new Image()
                btn11b.src="../inc/images/btn11a.gif"

 		btn12a=new Image()
                btn12a.src="../inc/images/btn12.gif"
                btn12b=new Image()
                btn12b.src="../inc/images/btn12a.gif"

 		btn13a=new Image()
                btn13a.src="../inc/images/btn13.gif"
                btn13b=new Image()
                btn13b.src="../inc/images/btn13a.gif"

 		btn14a=new Image()
                btn14a.src="../inc/images/btn14.gif"
                btn14b=new Image()
                btn14b.src="../inc/images/btn14a.gif"

                btn15a=new Image()
                btn15a.src="../inc/images/btn15.gif"
                btn15b=new Image()
                btn15b.src="../inc/images/btn15a.gif"

                btn16a=new Image()
                btn16a.src="../inc/images/btn16.gif"
                btn16b=new Image()
                btn16b.src="../inc/images/btn16a.gif"

                btn17a=new Image()
                btn17a.src="../inc/images/btn17.gif"
                btn17b=new Image()
                btn17b.src="../inc/images/btn17a.gif"

                btn18a=new Image()
                btn18a.src="../inc/images/btn18.gif"
                btn18b=new Image()
                btn18b.src="../inc/images/btn18a.gif"
				
				btn19a=new Image()
                btn19a.src="../inc/images/btn19.gif"
                btn19b=new Image()
                btn19b.src="../inc/images/btn19a.gif"
				
				btn20a=new Image()
                btn20a.src="../inc/images/btn20.gif"
                btn20b=new Image()
                btn20b.src="../inc/images/btn20a.gif"
				
				btn21a=new Image()
                btn21a.src="../inc/images/btn21.gif"
                btn21b=new Image()
                btn21b.src="../inc/images/btn21a.gif"
				
				btn22a=new Image()
                btn22a.src="../inc/images/btn22.gif"
                btn22b=new Image()
                btn22b.src="../inc/images/btn22a.gif"
				
				btn23a=new Image()
                btn23a.src="../inc/images/btn23.gif"
                btn23b=new Image()
                btn23b.src="../inc/images/btn23a.gif"
				
				btn24a=new Image()
                btn24a.src="../inc/images/btn24.gif"
                btn24b=new Image()
                btn24b.src="../inc/images/btn24a.gif"
}



function imgOff(imgName)
        {
                if  (document.images);
        {
                document[imgName].src = eval (imgName + "a.src");
        }
}

function imgOn(imgName)
        {
                if  (document.images)
        {
                document [imgName].src = eval (imgName + "b.src");
        }
}