if (document.images) {

	var image1on = new Image();	  				image1on.src = "images/spk-hp-on.gif";
	var image2on = new Image(); 					image2on.src = "images/spk-hr-on.gif";
	var image3on = new Image();  					image3on.src = "images/spk-mc-on.gif";
	var image4on = new Image();  					image4on.src = "images/address.gif";

	var image1off = new Image();  				image1off.src = "images/spk-hp-off.gif";
	var image2off = new Image();  				image2off.src = "images/spk-hr-off.gif";
	var image3off = new Image();  				image3off.src = "images/spk-mc-off.gif";
	var image4off = new Image();  				image4off.src = "images/cymbal_guy.gif";

	var otherImageDefault = new Image();  otherImageDefault.src = "images/spg.gif";

	var otherImage1on = new Image();		  otherImage1on.src = "images/blurb-hp.gif";
	var otherImage2on = new Image();		  otherImage2on.src = "images/blurb-hr.gif";
	var otherImage3on = new Image();		  otherImage3on.src = "images/blurb-mc.gif";

}

function changeImages() {
	if (document.images) {
	  for (var i=0; i<changeImages.arguments.length; i+=2) {
	    document[changeImages.arguments[i]].src = eval(changeImages.arguments[i+1] + ".src");
	  }
	}
}