scrnOn1 = new Image();
	scrnOn2 = new Image();
	scrnOn3 = new Image();
	scrnOn5 = new Image();
	scrnOn6 = new Image();
	scrnOn7 = new Image();
 	scrnOn8 = new Image();
	scrnOn9 = new Image();
	scrnOff10 = new Image();

	scrnOn1.src = "images/hpm1.gif";
	scrnOn2.src = "images/hpmpp.gif";
	scrnOn3.src = "images/hpm3.gif";
	scrnOn5.src = "images/hpm9.gif";
	scrnOn6.src = "images/hpm6.gif";
	scrnOn7.src = "images/hpm7.gif";
 	scrnOn8.src = "images/hpm8.gif";
 	scrnOn9.src = "images/hpmpp.gif";
	scrnOff10.src = "images/hpm.gif";

	function on1() {
	  document.scrn.src = scrnOn1.src;
	}
	function on2() {
	  document.scrn.src = scrnOn2.src;
	}
	function on3() {
	  document.scrn.src = scrnOn3.src;
	}

	function on5() {
	  document.scrn.src = scrnOn5.src;
	}
	function on6() {
	  document.scrn.src = scrnOn6.src;
	}

	function on7() {
	  document.scrn.src = scrnOn7.src;
	}

	function on8() {
	  document.scrn.src = scrnOn8.src;
	}
	
	function on9() {
	  document.scrn.src = scrnOn9.src;
	}

	function off10() {
	  document.scrn.src = scrnOff10.src;
}