//改写alert window.alert = function(txt) { var borderColor = "#999"; var title = "[月小升博客提示]"; var shield = document.createElement("DIV"); shield.id = "shield"; shield.style.position = "absolute"; shield.style.left = "0px"; shield.style.top = "0px"; shield.style.width = "100%"; shield.style.height = document.body.scrollHeight+"px"; shield.style.background = "#333"; shield.style.textAlign = … 继续阅读 →