本文實例講述了js控制div彈出層實現方法。分享給大家供大家參考。具體分析如下：
這是個功能很好，且容易調用和控制的彈出層。感興趣的朋友可以調試運行一下看看效果如何~O(∩_∩)O~
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>彈出窗口(可拖動，背景灰色透明)</title> <script type="text/javascript"> <!-- /*FileName:AlertMsg.js title:提示標題 content:提示的內容*/ document.write("<style type="text/css">*{padding:0; margin:0}.close{float:right;cursor:default}</style>") function $(id){ return document.getElementById(id)} function AlertMsg(title,content){ var msgw,msgh,msgbg,msgcolor,bordercolor,titlecolor,titlebg,con; con = "<form><table style='margin:10px 15px 15px 15px; border:0;'><tr><th style='border:0; line-height:22px; padding:3px 0; vertical-align:top;font-weight:bold;'>分類：</th><td style='border:0; line-height:22px; padding:3px 0; vertical-align:top;width:75%;'><input type='text' name='typename' size='20'/></td></tr><tr><th></th><td style='border:0; line-height:22px; padding:3px 0; vertical-align:top;width:75%;'><button style='line-height:normal;' type='submit' onclick='return submitform()'>確定</button> <button style='line-height:normal;' type='reset'>取消</button></td></tr></table></form>"; //彈出窗口設置 msgw = 300; //窗口寬度 msgh = 150; //窗口高度 msgbg = "#FFF"; //內容背景 msgcolor = "#000"; //內容顏色 bordercolor = "#000"; //邊框顏色 titlecolor = "#FFF"; //標題顏色 titlebg = "#369"; //標題背景 //遮罩背景設置 var sWidth,sHeight; sWidth = screen.availWidth; sHeight = document.body.scrollHeight; //創建遮罩背景 var maskObj = document.createElement("div"); maskObj.setAttribute('id','maskdiv'); maskObj.style.position = "absolute"; maskObj.style.top = "0"; maskObj.style.left = "0"; maskObj.style.background = "#777"; maskObj.style.filter = "Alpha(opacity=30);"; maskObj.style.opacity = "0.3"; maskObj.style.width = sWidth + "px"; maskObj.style.height = sHeight + "px"; maskObj.style.zIndex = "10000"; document.body.appendChild(maskObj); //創建彈出窗口 var msgObj = document.createElement("div") msgObj.setAttribute("id","msgdiv"); msgObj.style.position ="absolute"; msgObj.style.top = (screen.availHeight - msgh) / 4 + "px"; msgObj.style.left = (screen.availWidth - msgw) / 2 + "px"; msgObj.style.width = msgw + "px"; msgObj.style.height = msgh + "px"; msgObj.style.fontSize = "12px"; msgObj.style.background = msgbg; msgObj.style.border = "1px solid " + bordercolor; msgObj.style.zIndex = "10001"; //創建標題 var thObj = document.createElement("div"); thObj.setAttribute("id","msgth"); thObj.className = "DragAble"; thObj.style.cursor = "move"; thObj.style.padding = "4px 6px"; thObj.style.color = titlecolor; thObj.style.background = titlebg; var titleStr = "<a class='close' title='關閉' style='cursor:pointer' onclick='CloseMsg()'>關閉</a>"+"<span>"+ title +"</span>"; thObj.innerHTML = titleStr; //創建內容 var bodyObj = document.createElement("div"); bodyObj.setAttribute("id","msgbody"); bodyObj.style.padding = "10px"; bodyObj.style.lineHeight = "1.5em"; bodyObj.innerHTML = con; var txt = document.createTextNode(content) bodyObj.appendChild(txt); //生成窗口 document.body.appendChild(msgObj); $("msgdiv").appendChild(thObj); $("msgdiv").appendChild(bodyObj); } function CloseMsg(){ //移除對象 document.body.removeChild($("maskdiv")); $("msgdiv").removeChild($("msgth")); $("msgdiv").removeChild($("msgbody")); document.body.removeChild($("msgdiv")); } //拖動窗口 var ie = document.all; var nn6 = document.getElementById&&!document.all; var isdrag = false; var y,x; var oDragObj; function moveMouse(e) { if (isdrag) { oDragObj.style.top = (nn6 ? nTY + e.clientY - y : nTY + event.clientY - y)+"px"; oDragObj.style.left = (nn6 ? nTX + e.clientX - x : nTX + event.clientX - x)+"px"; return false; } } function initDrag(e) { var oDragHandle = nn6 ? e.target : event.srcElement; var topElement = "HTML"; while (oDragHandle.tagName != topElement && oDragHandle.className != "DragAble") { oDragHandle = nn6 ? oDragHandle.parentNode : oDragHandle.parentElement; } if (oDragHandle.className=="DragAble") { isdrag = true; oDragObj = oDragHandle.parentNode; nTY = parseInt(oDragObj.style.top); y = nn6 ? e.clientY : event.clientY; nTX = parseInt(oDragObj.style.left); x = nn6 ? e.clientX : event.clientX; document.onmousemove = moveMouse; return false; } } document.onmousedown = initDrag; document.onmouseup = new Function("isdrag=false"); //--> </script> </head> <body> <table width="600" border="0" cellspacing="0" cellpadding="0"> <tr > <td height="100" align="center" > <p><a href="javascript:AlertMsg("溫馨提示",'')">點我試試!</a></p> </td> </tr> </table> </div> </body> </html>希望本文所述對大家的javascript程序設計有所幫助。