function a(id, pic){
var toDay = new Date();
var tm = toDay.getMonth();
//document.write(tm+1); var el = document.getElementById(id);
el.background == el.background.replace(/\.jpg/,tm+".jpg");
}
var toDay = new Date();
var tm = toDay.getMonth();
//document.write(tm+1); var el = document.getElementById(id);
el.background == el.background.replace(/\.jpg/,tm+".jpg");
}
var toDay = new Date();
var tm = toDay.getMonth();
//document.write(tm+1); var el = document.getElementById(id);
el.background == el.background.replace(/\.jpg/,tm+".jpg");
}pic多余了...