web前端|html教程
自定义弹窗Style样式
web前端-html教程
由于系统默认alert弹出窗口不能自定义样式，有可能不符合网站的风格，虽然网上应该有很多这样的JS
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但是还是自己写的比较放心，顺便练习一下对DOM的操作
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支持IE6下的SELECT不能遮罩的问题，谷歌支持圆角，IE6下就比较丑了，四四方方的，不过可以自定义自己喜欢的样式
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听取建议后，修改了position:fixed, IE6下用hack处理了。
点击看效果:
点击模拟Alert弹出框
点击模拟Alert弹出框
点击模拟Alert弹出框
所需CSS：
#alertMsg { display: none; width: 400px; border: 1px solid #ddd; border-radius: 5px; box-shadow: 1px 1px 10px black; padding: 10px; font-size: 12px; position: absolute; text-align: center; background: #fff; z-index: 100000; } #alertMsg_info { padding: 2px 15px; line-height: 1.6em; text-align: left; } #alertMsg_btn1, #alertMsg_btn2 { display: inline-block; background: url(images/gray_btn.jpg) no-repeat left top; padding-left: 3px; color: #000000; font-size: 12px; text-decoration: none; margin-right: 10px; cursor: pointer; } #alertMsg_btn1 cite, #alertMsg_btn2 cite { line-height: 24px; display: inline-block; padding: 0 13px 0 10px; background: url(images/gray_btn.jpg) no-repeat right top; font-style: normal; }
使用方法，直接调用函数，传递所需定义的信息，支持定义是否有取消键：
alertMsg(msg, mode) //mode为空，即只有一个确认按钮，mode为1时有确认和取消两个按钮
点击模拟Alert弹出框
点击模拟Alert弹出框
点击模拟Alert弹出框
函数代码：添加了一个获取窗口尺寸的函数，又长长了很多，可以把获取窗口的尺寸另外立一个函数放公共库里面，这里只是为了方便演示，写到一个函数里面
function alertMsg(msg, mode) { //mode为空，即只有一个确认按钮，mode为1时有确认和取消两个按钮 msg = msg || \; mode = mode || 0; var top = document.body.scrollTop || document.documentElement.scrollTop; var isIe = (document.all) ? true : false; var isIE6 = isIe && !window.XMLHttpRequest; var sTop = document.documentElement.scrollTop || document.body.scrollTop; var sLeft = document.documentElement.scrollLeft || document.body.scrollLeft; var winSize = function(){ var xScroll, yScroll, windowWidth, windowHeight, pageWidth, pageHeight; // innerHeight获取的是可视窗口的高度，IE不支持此属性 if (window.innerHeight && window.scrollMaxY) {xScroll = document.body.scrollWidth;yScroll = window.innerHeight + window.scrollMaxY; } else if (document.body.scrollHeight > document.body.offsetHeight) { // all but Explorer MacxScroll = document.body.scrollWidth;yScroll = document.body.scrollHeight; } else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and SafarixScroll = document.body.offsetWidth;yScroll = document.body.offsetHeight; } if (self.innerHeight) { // all except ExplorerwindowWidth = self.innerWidth;windowHeight = self.innerHeight; } else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict ModewindowWidth = document.documentElement.clientWidth;windowHeight = document.documentElement.clientHeight; } else if (document.body) { // other ExplorerswindowWidth = document.body.clientWidth;windowHeight = document.body.clientHeight; } // for small pages with total height less then height of the viewport if (yScroll < windowHeight) {pageHeight = windowHeight; } else {pageHeight = yScroll; } // for small pages with total width less then width of the viewport if (xScroll < windowWidth) {pageWidth = windowWidth; } else {pageWidth = xScroll; } return{pageWidth:pageWidth,pageHeight:pageHeight,windowWidth:windowWidth,windowHeight:windowHeight } }(); //alert(winSize.pageWidth); //遮罩层 var styleStr = op:0;left:0;position:absolute;z-index:10000;background:#666;width: + winSize.pageWidth + px;height: + (winSize.pageHeight + 30) + px;; styleStr += (isIe) ? "filter:alpha(opacity=80);" : "opacity:0.8;"; //遮罩层DIV var shadowDiv = document.createElement(div); //添加阴影DIV shadowDiv.style.cssText = styleStr; //添加样式 shadowDiv.id = "shadowDiv"; //如果是IE6则创建IFRAME遮罩SELECT if (isIE6) { var maskIframe = document.createElement(iframe); maskIframe.style.cssText = width: + winSize.pageWidth + px;height: + (winSize.pageHeight + 30) + px;position:absolute;visibility:inherit;z-index:-1;filter:alpha(opacity=0);; maskIframe.frameborder = 0; maskIframe.src = "about:blank"; shadowDiv.appendChild(maskIframe); } document.body.insertBefore(shadowDiv, document.body.firstChild); //遮罩层加入文档 //弹出框 var styleStr1 = display:block;position:fixed;_position:absolute;left: + (winSize.windowWidth / 2 - 200) + px;top: + (winSize.windowHeight / 2 - 150) + px;_top: + (winSize.windowHeight / 2 + top - 150)+ px;; //弹出框的位置 var alertBox = document.createElement(div); alertBox.id = alertMsg; alertBox.style.cssText = styleStr1; //创建弹出框里面的内容P标签 var alertMsg_info = document.createElement(P); alertMsg_info.id = alertMsg_info; alertMsg_info.innerHTML = msg; alertBox.appendChild(alertMsg_info); //创建按钮 var btn1 = document.createElement(a); btn1.id = alertMsg_btn1; btn1.href = javas + cript:void(0); btn1.innerHTML = 确定; btn1.onclick = function () { document.body.removeChild(alertBox); document.body.removeChild(shadowDiv); return true; }; alertBox.appendChild(btn1); if (mode === 1) { var btn2 = document.createElement(a); btn2.id = alertMsg_btn2; btn2.href = javas + cript:void(0); btn2.innerHTML = 取消; btn2.onclick = function () {document.body.removeChild(alertBox);document.body.removeChild(shadowDiv);return false; }; alertBox.appendChild(btn2); } document.body.appendChild(alertBox); }
点击模拟Alert弹出框
点击模拟Alert弹出框
点击模拟Alert弹出框
