Question

求点击弹出层的html代码~

就是点击网页上一个图片，让他放大，背景变暗的效果。我是新手，不知道文件路径怎么填。。。

Answer 1

var isIe = (document.all) ? true : false;
//设置select的可见状态
function setSelectState(state) {
var objl = document.getElementsByTagName('select');
for (var i = 0; i < objl.length; i++) {
objl[i].style.visibility = state;
}
}
function mousePosition(ev) {
if (ev.pageX || ev.pageY) {
return { x: ev.pageX, y: ev.pageY };
}
return {
x: ev.clientX + document.body.scrollLeft - document.body.clientLeft, y: ev.clientY + document.body.scrollTop - document.body.clientTop
};
}
//弹出方法
function showMessageBox(wTitle, content, pos, wWidth) {
closeWindow();
var bWidth = parseInt(document.documentElement.scrollWidth);
var bHeight = parseInt(document.documentElement.scrollHeight);
if (isIe) {
setSelectState('hidden');
}
var back = document.createElement("div");
back.id = "back";
var styleStr = "top:0px;left:0px;position:absolute;background:#666;width:" + bWidth + "px;height:" + bHeight + "px;";
styleStr += (isIe) ? "filter:alpha(opacity=0);" : "opacity:0;";
back.style.cssText = styleStr;
document.body.appendChild(back);
showBackground(back, 50);
var mesW = document.createElement("div");
mesW.id = "mesWindow";
mesW.className = "mesWindow";
mesW.innerHTML = "<div class='mesWindowTop'><table width='100%' height='100%'><tr><td>" + wTitle + "</td><td style='width:1px;'><input type='button' onclick='closeWindow();' style='font-size:12px;cursor:pointer;' title='关闭窗口' class='close' value='关闭' /></td></tr></table></div><div class='mesWindowContent' id='mesWindowContent'>" + content + "</div><div class='mesWindowBottom'></div>";
styleStr = "left:" + (((pos.x - wWidth) > 0) ? (pos.x - wWidth) : pos.x) + "px;top:" + (pos.y) + "px;position:absolute;width:" + wWidth + "px;";
mesW.style.cssText = styleStr;
document.body.appendChild(mesW);
}
//让背景渐渐变暗
function showBackground(obj, endInt) {
if (isIe) {
obj.filters.alpha.opacity += 1;
if (obj.filters.alpha.opacity < endInt) {
setTimeout(function() { showBackground(obj, endInt) }, 5);
}
} else {
var al = parseFloat(obj.style.opacity); al += 0.01;
obj.style.opacity = al;
if (al < (endInt / 100))
{ setTimeout(function() { showBackground(obj, endInt) }, 5); }
}
}
//关闭窗口
function closeWindow() {
if (document.getElementById('back') != null) {
document.getElementById('back').parentNode.removeChild(document.getElementById('back'));
}
if (document.getElementById('mesWindow') != null) {
document.getElementById('mesWindow').parentNode.removeChild(document.getElementById('mesWindow'));
}
if (isIe) {
setSelectState('');
}
}
//测试弹出
function testMessageBox(ev, ob) {
var objPos = mousePosition(ev);

messContent = "<div style='text-align:center;filter:alpha(opacity=60);'><img src='" + ob + "' width='600' height='400' /></div>";
showMessageBox('', messContent, objPos, 620);
}
在前台调用：
onclick="testMessageBox(event,'图片的路径');"
图片路径你比如说在C:\a.jpg,你就可以把路径填进去，这样就OK了，你可以试试