$(function()
{
	$(".btnMouseOver").each(function(i)
	{
		var srcOFF = $(this).attr("src");
		var srcON  = srcOFF.replace("_off.", "_on.");
		$(this).mouseover(function(){ $(this).attr("src", srcON ); });
		$(this).mouseout (function(){ $(this).attr("src", srcOFF); });
	});
});