NN4=((parseInt(navigator.appVersion)>=4 && parseInt(navigator.appVersion)<5)&&(navigator.appName.indexOf("Netscape")!=-1))?1:0
NN6=((parseInt(navigator.appVersion)>=5)&&(navigator.appName.indexOf("Netscape")!=-1))?1:0
MS4=((parseInt(navigator.appVersion)>=4)&&(navigator.appName.indexOf("Microsoft")!=-1))?1:0

function f_get_elem(i)
{
if(NN6)			return(document.getElementById(i));
else if(NN4)	return(document.layers[i]);
else			return(document.all[i]);
}

function f_set_elem(i,x)
{
if(NN6)			document.getElementById(i).childNodes[0].nodeValue = x;
else if(NN4)	document.layers[i].innerText = x;
else			document.all[i].innerText = x;
}