function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}
function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}
var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		email_over = newImage("_img/nav/email_over.gif");
		home_over = newImage("_img/nav/home_over.gif");
		newsdoc_over = newImage("_img/nav/news-doc_over.gif");
		products_msds_over = newImage("_img/nav/products-msds_over.gif");
		products_ca_over = newImage("_img/nav/products-ca_over.gif");
		products_tds_over = newImage("_img/nav/products-tds_over.gif");
		search_over = newImage("_img/nav/menu/search_over.gif");
		products_fda_over = newImage("_img/nav/products-fda_over.gif");
		preloadFlag = true;
	}
}

/*************************************************************************
  This code is from Dynamic Web Coding at http://www.dyn-web.com/
  See Terms of Use at http://www.dyn-web.com/bus/terms.html
  Permission granted to use this code
  as long as this entire notice is included.
*************************************************************************/
// *** ... modified by Dave Stofka, EIS Inc

function changeContent(tagID, newHTML) {
   if ((document.getElementById && !document.all) || document.all) {
	  var element = document.getElementById ? document.getElementById(tagID) : document.all[tagID];
	  if (element && typeof element.innerHTML != "undefined") element.innerHTML = newHTML;
   }
}

// end Dynamic Web Coding code