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我有这个JS代码在弹出框中显示滚动过去时div的id值。当ID看起来像这样时它工作正常:id =“1”。但我怎么能改变它来检测一个id,如下所示:id =“1:1”或id =“23:4”?两个数字用冒号分隔。在滚动条上显示Div ID
<div id="sayverse"></div>
<div id="1">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Pellentesque et facilisis elit. Ut interdum, odio et aliquam tempor, felis odio auctor erat, eget elementum lectus arcu tempus elit.</div>
<div id="2">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Pellentesque et facilisis elit. Ut interdum, odio et aliquam tempor, felis odio auctor erat, eget elementum lectus arcu tempus elit.</div>
function findPosition(oElement) {
if(typeof(oElement.offsetParent) != 'undefined') {
for(var posX = 0, posY = 0; oElement; oElement = oElement.offsetParent) {
posX += oElement.offsetLeft; posY += oElement.offsetTop; }
return [ posX, posY ];
} else {
return [ oElement.x, oElement.y ];
}
}
function functionThatSetsPosition() {
var scrolledFromTop = getScrollXY()[1];
var topposition, lastone, offsetFromTop, currentverse, firstVerse = 1;
while(!document.getElementById('vs'+firstVerse) && firstVerse < 10000) {
firstVerse++;
}
for(var i = firstVerse, onediv; onediv = document.getElementById('vs'+i); i++) {
topposition = findPosition(onediv)[1];
offsetFromTop = topposition - scrolledFromTop;
if(i == firstVerse && offsetFromTop >= 0) {
currentverse = i;
break;
}
if(offsetFromTop >= 0 && offsetFromTop <= 20) {
currentverse = i;
break;
}
if(offsetFromTop > 20) {
currentverse = lastone;
break;
}
//store this as the last one for checking afterwards
lastone = i;
}
if(!currentverse) {
currentverse = lastone;
}
document.getElementById('sayverse').innerHTML = 'Verse '+currentverse;
}
菲利普
我想给我的Y坐标为我滚动。我忘了提及id中的数字前缀为'vs'。我包含这段代码,因为它是检测滚动的JS代码的一部分。之前我没有加入,因为我认为没有必要。 '函数findPosition(oElement){ \t如果(typeof运算(oElement.offsetParent)= '未定义'!){ \t \t为(VAR POSX = 0,POSY = 0; oElement; oElement = oElement.offsetParent){ \t \t \t posX + = oElement.offsetLeft; \t \t \t posY + = oElement.offsetTop; \t \t} \t \t return [posX,posY]; \t} else { \t \t return [oElement.x,oElement.y]; \t} }' – 2012-08-02 15:57:45