Checkbox onclick Event Handler and show/hide function
Question
so i am trying to make dynamic checkboxs that will show/hide certain content when clicked. I have this but cannot get it to work properly:
<html>
<head>
<title>Checkbox Event Handler</title>
<style type="text/css">
#myGroup {visibility:hidden}
</style>
<script type="text/javascript">
function toggle(chkbox, group) {
var visSetting = (chkbox.checked) ? "visible" : "hidden";
document.getElementById(group).style.visibility = visSetting;
}
function swap(radBtn, group) {
var modemsVisSetting = (group == "modems") ? ((radBtn.checked) ? "" : "none") : "none";
document.getElementById("modems").style.display = modemsVisSetting;
}
</script>
<?php require_once("/var/www/html/exercise/Task/functions.php"); ?>
</head>
<body>
<?php
$seqA[]="AAAAAAAAAAAAAAAAAAAAAAAAAAAAABBBBBBBBBBBBBBBBB";
$seqA[]="BBBBBBBBBBBBBBBBBBBBBBBBBBCCCCCCCCCCCCCCCCCCDDDDDDDDDD0";
$seqA[]="CCCCCCCCCCCCCCCCCCCCCCCCCCDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD";
?>
<form>
<?php
$i=o;
foreach($seqA as $seq){
?>
<input type="checkbox" name="monitor"onclick="toggle(this, 'myGroup')" />show results
<span id="myGroup">
<?php
$score=rawtransform(950);
$truecol= getcolor($score,220);
colorSequence($seq,5/*hit*/,$truecol,4);
}
?>
</span>
</form>
</body>
</html>
it opens the first string in $seqA normally and works fine however the second checkbox is within the first string ? Im sure ive done something very stupid, but im new to programming. Anyone help please ?
2 answers
solution1
1 ACCPTED 2012-05-15 12:58:32
The problem I see is that in each foreach loop iteration you add element span with the same id attribute. Set unique IDs, change your JavaScript toggle function to address specified span and it will work.
solution2
0 2012-05-15 12:58:47
我对PHP不太熟悉，但是似乎您生成了多个具有相同ID的span元素，这将导致document.getElementById以无法预测的方式起作用。
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