var is_IE = ( navigator.appName == "Microsoft Internet Explorer" );
var is_NN = ( navigator.appName == "Netscape" );

function SetCssClass(controlID, controlCssClass)
{
	if ( is_IE )
	{
		document.getElementById(controlID).className = controlCssClass ;
	}
	else if ( is_NN )
	{
		document.getElementById(controlID).setAttribute("class", controlCssClass) ;
	}
}