Javascript收藏之:div提示框

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/**
*div层的提示信息
*
*陈文光   2008.4.29
*stitle 标题
*str 显示的内容
*msgw 提示窗口的宽度
*msgh 提示窗口的高度
*msgleft 窗口的左边位置
msgtop 窗口的顶端位置
*使用例子 <p onclick="sAlert('loading....','登录','600','400','30%','20%');">登陆</p>
*/

function sAlert(str, stitle, msgw, msgh, msgleft, msgtop) {
    
if (document.getElementById("bgDiv") != null) {
//alert('pkkkkkkkkkp');
        
removeObj();
    
}
    
var msgw, msgh, bordercolor;
    
this.msgw = msgw;//提示窗口的宽度
    
this.msgh = msgh;//提示窗口的高度
    
titleheight = 14; //提示窗口标题高度
    
bordercolor = "#336699";//提示窗口的边框颜色
    
titlecolor = "#99CCFF";//提示窗口的标题颜色
    
bgcolor = "#777";
    
titlefontsize = 13;//标题字体小 单位px
    
this.msgleft = msgleft;//窗口的左边位置
    
this.msgtop = msgtop;//窗口的顶端位置
 
//背景层
    
var sWidth, sHeight;
    
sWidth = document.body.offsetWidth;
    
sHeight = document.body.offsetHeight;
    
var bgObj = document.createElement("div");
    
bgObj.setAttribute("id", "bgDiv");
    
bgObj.style.position = "absolute";
    
bgObj.style.top = "0";
    
bgObj.style.background = bgcolor;
    
bgObj.style.filter = "progid:DXImageTransform.Microsoft.Alpha(style=3,opacity=25,finishOpacity=75";
    
bgObj.style.opacity = "0.6";
    
bgObj.style.left = "0";
    
bgObj.style.width = sWidth + "px";
    
bgObj.style.height = sHeight + "px";
    
bgObj.style.zIndex = "10000";
    
document.body.appendChild(bgObj);
//ifram,防止ie6中select元素在div上
    
var ifObj = document.createElement("iframe");
    
ifObj.style.position = "absolute";
    
ifObj.style.zIndex = "10001";
    
ifObj.style.width = sWidth + "px";
    
ifObj.style.height = sHeight + "px";
    
ifObj.style.top = "0";
    
ifObj.style.left = "0";
    
ifObj.style.filter = "progid:DXImageTransform.Microsoft.Alpha(style=3,opacity=25,finishOpacity=75";
    
document.getElementById("bgDiv").appendChild(ifObj);
    
var msgObj = document.createElement("div");//创建一个div对象(提示框层)
//定义div属性
    
msgObj.setAttribute("id", "msgDiv");
    
msgObj.setAttribute("align", "center");
    
msgObj.style.background = "white";
    
msgObj.style.border = "1px solid " + bordercolor;
    
msgObj.style.position = "absolute";
    
msgObj.style.left = msgleft;
    
msgObj.style.top = msgtop;
    
msgObj.style.font = "12px/1.6em Verdana, Geneva, Arial, Helvetica, sans-serif";
    
msgObj.style.marginLeft = "-225px";
    
msgObj.style.marginTop = -75 + document.documentElement.scrollTop + "px";
    
msgObj.style.width = msgw + "px";
    
msgObj.style.height = msgh + "px";
    
msgObj.style.textAlign = "center";
    
msgObj.style.lineHeight = "25px";
    
msgObj.style.zIndex = "10001";
    
var title = document.createElement("h4");//创建一个h4对象(提示框标题栏)
//定义h4的属性于
    
title.setAttribute("id", "msgTitle");
    
title.setAttribute("align", "center");
    
title.style.margin = "0";
    
title.style.padding = "3px";
    
title.style.background = bordercolor;
    
title.style.filter = "progid:DXImageTransform.Microsoft.Alpha(startX=20, startY=20, finishX=100, finishY=100,style=1,opacity=75,finishOpacity=100);";
    
title.style.opacity = "0.75";
    
title.style.border = "1px solid " + bordercolor;
    
title.style.height = titleheight + "px";
    
title.style.font = titlefontsize + "px Verdana, Geneva, Arial, Helvetica, sans-serif";
    
title.style.color = "white";
    
title.style.cursor = "pointer";
    
title.innerHTML = stitle;
    
title.onclick = removeObj;
    
var button = document.createElement("input");//创建一个input对象(提示框按钮)
//定义input的属性
    
button.setAttribute("type", "button");
    
button.setAttribute("value", "/u5173/u95ed");
    
button.style.width = "60px";
    
button.style.align = "center";
    
button.style.marginLeft = "250px";
    
button.style.marginBottom = "10px";
    
button.style.background = bordercolor;
    
button.style.border = "1px solid " + bordercolor;
    
button.style.color = "white";
    
button.onclick = removeObj;
    
function removeObj() {//点击标题栏触发的事件
        
document.getElementById("msgDiv").removeChild(title);//删除提示框的标题栏
        
document.getElementById("msgDiv").removeChild(button);//删除关闭按钮
        
document.getElementById("msgDiv").removeChild(txt);//删除内容
        
document.body.removeChild(msgObj);//删除提示框层
        
document.getElementById("bgDiv").removeChild(ifObj);
        
document.body.removeChild(bgObj);
    
}
    
document.body.appendChild(msgObj);//在body内添加提示框div对象msgObj
    
document.getElementById("msgDiv").appendChild(title);//在提示框div中添加标题栏对象title
    
var txt = document.createElement("div");//创建一个div对象(提示框提示信息)
//定义p的属性
    
txt.style.margin = "1em 0";
    
txt.setAttribute("id", "msgTxt");
    
txt.style.marginBottom = "0px";
    
txt.innerHTML = str;//来源于函数调用时的参数值
    
document.getElementById("msgDiv").appendChild(txt);//在提示框div中添加提示信息对象txt
    
document.getElementById("msgDiv").appendChild(button);//在提示框div中添加按钮对象button
}
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