function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

MM_preloadImages('/assets/images/hm_data_conversion_o.gif','/assets/images/hm_signal_conditioning_o.gif','/assets/images/hm_power_management_o.gif','/assets/images/hm_high_frequency_o.gif','/assets/images/hm_interface_o.gif','/assets/images/hm_special_functions_o.gif');

if(document.getElementById) {
	sfHover = function() {
		var sfEls = document.getElementById("nav").getElementsByTagName("li");
		for (var i=0; i<sfEls.length; i++) {
			sfEls[i].onmouseover=function() {
				this.className+=" sfhover";
			}
			sfEls[i].onmouseout=function() {
				this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
			}
		}
	}
	if (window.attachEvent) window.attachEvent("onload", sfHover);
}