$(document).ready(function() {
		$(".btn").hover(function() {
			var elid = $(this).attr("src");
	                elid = elid.split("/");
        	        var fileArry = elid[elid.length-1].split(".");
                	elid.pop();
	                var url = "";
			for (var i in elid) {
				if (i == 0) {
					url = elid[i];
				} else {
					url = url+"/"+elid[i];
				}
			}
			url = url+"/"+fileArry[0]+"Over."+fileArry[1];
			$(this).attr("src",url);
		}, function() {
			var elid = $(this).attr("src");
                        elid = elid.split("/");
                        var fileArry = elid[elid.length-1].split(".");
                        elid.pop();
                        var url = "";
                        for (var i in elid) {
                                if (i == 0) {
                                        url = elid[i];
                                } else {
                                        url = url+"/"+elid[i];
                                }
                        }
			fileArry[0] = fileArry[0].replace("Over","");
                        url = url+"/"+fileArry[0]+"."+fileArry[1];
                        $(this).attr("src",url);		
		});
	});