IE4=0;
NN2=0;
ua=navigator.userAgent;
v=navigator.appVersion.substring(0,1);

if ((ua.lastIndexOf("MSIE")!=-1) && (v!='1') && (v!='2') && (v!='3'))
	{IE4=1};
if ((navigator.userAgent.indexOf("Mozilla/2.") != -1) || (navigator.userAgent.indexOf("Mozilla/1.") != -1))
	{ NN2 = 1;}
if (!navigator.userAgent) NN2 = 1;

//functions to highlight fields
function HighLite(pColor) {
  if (!IE4){return;}
    src = event.srcElement;
	src.style.background = pColor;
}

function UnHighLite() {
  if (!IE4){return;}
    src=event.srcElement;
    src.style.background = "#ffffff";
}