function date2str(x,y) {
var z = {
y:x.getFullYear(),
M:x.getMonth()+1,
d:x.getDate(),
h:x.getHours(),
m:x.getMinutes(),
s:x.getSeconds()
};
return y.replace(/(y+|M+|d+|h+|m+|s+)/g,
function(v) {
return ((v.length>1?"0":"")+z[v.slice(-1)]).slice(-(v.length>2?v.length:2))
}
);
}
document.write("<p>" + date2str(new Date(),"yy-M-d h:m:s") + "</p>");
document.write("<p>" + date2str(new Date(),"yyyy/M/dd hh:mm:ss") + "</p>");