// JavaScript Document
var _IE = (document.all && !document.captureEvents);

function buttonHover(btn){
	var btnHoverId = btn.getAttribute("id") + "Hover";
	if(!btn.hover || btn.hover == false){
		btn.hover = true;
		document.getElementById(btnHoverId).style.visibility = "visible";
		if(_IE)
			btn.filters.alpha.opacity = 0;
		else
			btn.style.opacity = 0;
	}
	else
	{
		btn.hover = false;
		document.getElementById(btnHoverId).style.visibility = "hidden";
		if(_IE)
			btn.filters.alpha.opacity = 100;
		else
			btn.style.opacity = 1;
	}
}