function getDocObj(elem,parent){
if(document.layers)
{
	if(parent){
		return "document."+parent+".document."+elem;
	}
	else{
		return "document."+elem;
	}
}
else if(document.all){
		return "document.all."+elem;
	}
else if(document.getElementById){
		return "document.getElementById('" + elem + "')";
	}
}

function getStyleObj(elem, parent){
if(document.layers){
	if(parent){
		return "document."+parent+".document."+elem;
	}
	else{
		return "document."+elem+".style";
	}
}
else if(document.all){
		return "document.all."+elem+".style";
	}
else if(document.getElementById){
		return "document.getElementById('"+elem+"').style";
	}
}