function addFileInpt(contId, pref)
{
	holder = document.getElementById(contId);
	inpts = getElementsByAttr(holder, "type", "file");
	newInpt = document.createElement("INPUT");
	newInpt.type = "file";
	newInpt.name = pref+String(inpts.length);
	br = document.createElement("BR");
	holder.appendChild(br);
	holder.appendChild(newInpt);
	return false;
}