كيفية تغيير نمط تنبيه JS مثل لون الخلفية

نسخ رمز رمز على النحو التالي:

window.alert = وظيفة (str)

{{

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" ؛

// لون الخلفية عند ظهور مربع الحوار

shield.style.background = "#fff" ؛

shield.style.textalign = "center" ؛

shield.style.zindex = "25" ؛

// الخلفية شفافة IE صالحة

//shield.style.filter = "alpha (عتامة = 0)" ؛

var alertfram = document.createElement ("div") ؛

ALERTFRAM.ID = "Alertfram" ؛

ALERTFRAM.STYLE.POSSION = "Absolute" ؛

ALERTFRAM.STYLE.LEFT = "50 ٪" ؛

ALERTFRAM.STYLE.TOP = "50 ٪" ؛

alertfram.style.marginleft = "-225px" ؛

alertfram.style.margintop = "-75px" ؛

alertfram.style.width = "450px" ؛

alertfram.style.height = "150px" ؛

alertfram.style.background = "#ff0000" ؛

alertfram.style.textalign = "center" ؛

alertfram.style.lineheight = "150px" ؛

alertfram.style.zindex = "300" ؛

strhtml = "<ul style =/" القائمة: لا شيء ؛

strhtml = <li stype = background: 1px Solid #f9cade ؛/"> [موجه مخصص] </li>/n" ؛

strhtml = <li style = extrical: /">"+str+"</li>/n" ؛

strhtml = "<li style /"button/" value =/"ok/" onClick =/"dook ()/"/> </li>/n "؛

strhtml += "</ul>/n" ؛

alertfram.innerhtml = strhtml ؛

document.body.appendChild (Alertfram) ؛

document.body.appendchild (Shield) ؛

var adj = setInterval ("doalpha ()" ، 5) ؛

this.dook = function () {

alertfram.style.display = "none" ؛

درع.

}

ALERTFRAM.FOCUS () ؛

document.body.OnsElectStart = function () {return false ؛} ؛

}

التأثير كما هو موضح في الشكل