Ive loant javascript,在我的网站上查看图片。 但我希望能够在每个网站上看到更多图片。 - 为此,我需要将ID改为类。 这可能吗?将ID更改为JS中的类别
的JavaScript
function toggle(div_id) {
var el = document.getElementById(div_id);
if (el.style.display == 'none') { el.style.display = 'block';}
else {el.style.display = 'none';}
}
function blanket_size(popUpDivVar) {
if (typeof window.innerWidth != 'undefined') {
viewportheight = window.innerHeight;
} else {
viewportheight = document.documentElement.clientHeight;
}
if ((viewportheight > document.body.parentNode.scrollHeight) && (viewportheight > document.body.parentNode.clientHeight)) {
blanket_height = viewportheight;
} else {
if (document.body.parentNode.clientHeight > document.body.parentNode.scrollHeight) {
blanket_height = document.body.parentNode.clientHeight;
} else {
blanket_height = document.body.parentNode.scrollHeight;
}
}
var blanket = document.getElementById('blanket');
blanket.style.height = blanket_height + 'px';
var popUpDiv = document.getElementById(popUpDivVar);
popUpDiv_height=blanket_height/2-150;//150 is half popup's height
popUpDiv.style.top = popUpDiv_height + 'px';
}
function window_pos(popUpDivVar) {
if (typeof window.innerWidth != 'undefined') {
viewportwidth = window.innerHeight;
} else {
viewportwidth = document.documentElement.clientHeight;
}
if ((viewportwidth > document.body.parentNode.scrollWidth) && (viewportwidth > document.body.parentNode.clientWidth)) {
window_width = viewportwidth;
} else {
if (document.body.parentNode.clientWidth > document.body.parentNode.scrollWidth) {
window_width = document.body.parentNode.clientWidth;
} else {
window_width = document.body.parentNode.scrollWidth;
}
}
var popUpDiv = document.getElementById(popUpDivVar);
window_width=window_width/2-150;//150 is half popup's width
popUpDiv.style.left = window_width + 'px';
}
function popup(windowname) {
blanket_size(windowname);
window_pos(windowname);
toggle('blanket');
toggle(windowname);
}
CSS
#blanket {
background-color:#111;
opacity: 0.8;
filter:alpha(opacity=65);
position:absolute;
z-index: 1000;
top:0px;
left:0px;
width:100%;
}
#popUpDiv {
position:absolute;
background-repeat:no-repeat;
z-index: 1001;
text-align:center;
left:0;
top:0;
}
HTML
<div id="blanket" style="display:none;"></div>
<div id="popUpDiv" style="display:none;">
<a href="Index.html" onclick="popup('popUpDiv')">
<img id="imageid" src="bigPicture.png" alt="picture"/><br /></a>
</div>
<a href="#" onclick="popup('popUpDiv')" class="pic"><img src="smallPicture.png" alt="picture"/></a>
将代码减少到我们需要知道的最低限度以理解问题。没有人会通读所有那些垃圾 – 2011-12-18 14:04:35