<SCRIPT LANGUAGE="JavaScript">
<!-- Begin
function checkAll(bCheck) {
var checkboxes = document.checkboxform.elements["key"];
for (var j = 0; j < checkboxes.length; j++) {
checkboxes[j].checked = bCheck;
}
}
function switchAll() {
var checkboxes = document.checkboxform.elements["key"];
for (var j = 0; j < checkboxes.length; j++) {
checkboxes[j].checked = !checkboxes[j].checked;
}
}
// End -->
</script>
<form name=checkboxform>
<input type=checkbox name=key checked>C1<br>
<input type=checkbox name=key checked>C2<br>
<input type=checkbox name=key checked>C3<br>
<input type=checkbox name=key checked>C4<br>
<input type=checkbox name=key checked>C5<br>
<input type=checkbox name=key checked>C6<br>
<input type=checkbox name=key checked>C7<br>
<input type=checkbox name=key checked>C8<br>
<input type=checkbox name=key checked>C9<br>
<br>
<input type=button value="全部选中" onClick="checkAll(true)"><br>
<input type=button value="全部不选" onClick="checkAll(false)"><br>
<input type=button value="选择转换" onClick="switchAll()"><br>
</form>
<!-- Begin
function checkAll(bCheck) {
var checkboxes = document.checkboxform.elements["key"];
for (var j = 0; j < checkboxes.length; j++) {
checkboxes[j].checked = bCheck;
}
}
function switchAll() {
var checkboxes = document.checkboxform.elements["key"];
for (var j = 0; j < checkboxes.length; j++) {
checkboxes[j].checked = !checkboxes[j].checked;
}
}
// End -->
</script>
<form name=checkboxform>
<input type=checkbox name=key checked>C1<br>
<input type=checkbox name=key checked>C2<br>
<input type=checkbox name=key checked>C3<br>
<input type=checkbox name=key checked>C4<br>
<input type=checkbox name=key checked>C5<br>
<input type=checkbox name=key checked>C6<br>
<input type=checkbox name=key checked>C7<br>
<input type=checkbox name=key checked>C8<br>
<input type=checkbox name=key checked>C9<br>
<br>
<input type=button value="全部选中" onClick="checkAll(true)"><br>
<input type=button value="全部不选" onClick="checkAll(false)"><br>
<input type=button value="选择转换" onClick="switchAll()"><br>
</form>
<!-- Begin
function checkAll() {
var key= document.getElementByName("key");
var keyL=key.length;
for (var i = 0; i < keyL; i++) {
checkboxes[i].checked = true;
}
}function uncheckAll() {
var key= document.getElementByName("key");
var keyL=key.length;
for (var i = 0; i < keyL; i++) {
checkboxes[i].checked = false;
}
}
function switchAll() {
var key= document.getElementByName("key");
var keyL=key.length;
for (var i = 0; i < keyL; i++) {
checkboxes[i].checked = !checkboxes[i].checked;
}
}
// End -->
</script>
<form name=checkboxform>
<input type=checkbox name=key checked>C1<br>
<input type=checkbox name=key checked>C2<br>
<input type=checkbox name=key checked>C3<br>
<input type=checkbox name=key checked>C4<br>
<input type=checkbox name=key checked>C5<br>
<input type=checkbox name=key checked>C6<br>
<input type=checkbox name=key checked>C7<br>
<input type=checkbox name=key checked>C8<br>
<input type=checkbox name=key checked>C9<br>
<br>
<input type=button value="全部选中" onClick="checkAll()"><br>
<input type=button value="全部不选" onClick="checkAll()"><br>
<input type=button value="选择转换" onClick="switchAll()"><br>
</form>
var key= document.getElementByTagName("key");