由于JS裡自帶的alert()消息提示不太友好,是以可以通過一個DIV層來模拟alert資訊框,模拟的消息框IE,FF;裡都适用,代碼如下:
test.html:
<! DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" >
< html xmlns ="http://www.w3.org/1999/xhtml" >
< head >
< meta http-equiv ="Content-Type" content ="text/html; charset=utf-8" />
< title > 消息視窗測試 </ title >
< script language ="javascript" src ="win.js" type ="text/javascript" ></ script >
</ head >
< body >
< input type ="button" value ="點這裡" onclick ="alertWin('标題','這裡是内容',300,200)" />
</ body >
</ html >
win.js:
function alertWin(title, msg, w, h)
... {
var titleheight = "22px"; // 提示視窗标題高度
var bordercolor = "#666699"; // 提示視窗的邊框顔色
var titlecolor = "#FFFFFF"; // 提示視窗的标題顔色
var titlebgcolor = "#666699"; // 提示視窗的标題背景色
var bgcolor = "#FFFFFF"; // 提示内容的背景色
var iWidth = document.documentElement.clientWidth;
var iHeight = document.documentElement.clientHeight;
var bgObj = document.createElement("div"); //添加背景,在原頁面上面蓋上一層DIV,作用是禁止使用者與視窗後的控件互動
bgObj.style.cssText = "position:absolute;left:0px;top:0px;width:"+iWidth+"px;height:"+Math.max(document.body.clientHeight, iHeight)+"px;filter:Alpha(Opacity=30);opacity:0.3;background-color:#000000;z-index:101;";
document.body.appendChild(bgObj);
var msgObj=document.createElement("div");//添加提示視窗
msgObj.style.cssText = "position:absolute;font:11px '宋體';top:"+(iHeight-h)/2+"px;left:"+(iWidth-w)/2+"px;width:"+w+"px;height:"+h+"px;text-align:center;border:1px solid "+bordercolor+";background-color:"+bgcolor+";padding:1px;line-height:22px;z-index:102;";
document.body.appendChild(msgObj);
var table = document.createElement("table");
msgObj.appendChild(table);
table.style.cssText = "margin:0px;border:0px;padding:0px;";
table.cellSpacing = 0;
var tr = table.insertRow(-1);
var titleBar = tr.insertCell(-1);//添加視窗标題欄
titleBar.style.cssText = "width:100%;height:"+titleheight+"px;text-align:left;padding:3px;margin:0px;font:bold 13px '宋體';color:"+titlecolor+";border:1px solid " + bordercolor + ";cursor:move;background-color:" + titlebgcolor;
titleBar.style.paddingLeft = "10px";
titleBar.innerHTML = title;
var moveX = 0;
var moveY = 0;
var moveTop = 0;
var moveLeft = 0;
var moveable = false;
var docMouseMoveEvent = document.onmousemove;
var docMouseUpEvent = document.onmouseup;
titleBar.onmousedown = function()
...{
var evt = getEvent();
moveable = true;
moveX = evt.clientX;//moveX、moveY為滑鼠點選坐标,moveTop、moveLeft為視窗坐标
moveY = evt.clientY;
moveTop = parseInt(msgObj.style.top);
moveLeft = parseInt(msgObj.style.left);
document.onmousemove = function()
...{
if (moveable)
...{
var evt = getEvent();
var x = moveLeft + evt.clientX - moveX;//(evt.clientX - moveX)為滑鼠偏移量
var y = moveTop + evt.clientY - moveY;
if ( x > 0 &&( x + w < iWidth - 3) && y > 0 && (y + h < iHeight - 3) ) //限制視窗不出界
...{
msgObj.style.left = x + "px";
msgObj.style.top = y + "px";
}
}
};
document.onmouseup = function ()
...{
if (moveable)
...{
document.onmousemove = docMouseMoveEvent;
document.onmouseup = docMouseUpEvent;
moveable = false;
moveX = 0;
moveY = 0;
moveTop = 0;
moveLeft = 0;
}
};
}
var closeBtn = tr.insertCell(-1);//添加關閉欄
closeBtn.style.cssText = "cursor:pointer; padding:2px;background-color:" + titlebgcolor;
closeBtn.innerHTML = "<span style='font-size:15pt; color:"+titlecolor+";'>×</span>";
closeBtn.onclick = function()
...{
document.body.removeChild(bgObj);
document.body.removeChild(msgObj);
}
var msgBox = table.insertRow(-1).insertCell(-1);//添加消息欄
msgBox.style.cssText = "font:10pt '宋體';";
msgBox.colSpan = 2;
msgBox.innerHTML = msg;
// 獲得事件Event對象,用于相容IE和FireFox
function getEvent()
...{
return window.event || arguments.callee.caller.arguments[0];
}
}