function systemHov(hovered,off){
	elementId = hovered.split("_");
	elementType = (elementId[1] == "th") ? "link" : "th";
	elementPair = elementId[0]+'_'+elementType+'_'+elementId[2];
	MM_findObj(elementPair).className = (off) ? '' : 'current';
}
	function MM_findObj(n, d) { //v4.01
		var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
			d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
		if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
		for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
		if(!x && d.getElementById) x=d.getElementById(n); return x;
	}