<script>
function disable_text(){
alert(form1.C3.value)
if(form1.C3.checked)
form1.C4.disabled=true
else
form1.C4.disabled=false
}
</script>
<form name="form1">
<INPUT type=checkbox value=28 name=C3 onclick="disable_text()">
<INPUT type=checkbox value=3 name=C4>
</form>
function disable_text(){
alert(form1.C3.value)
if(form1.C3.checked)
form1.C4.disabled=true
else
form1.C4.disabled=false
}
</script>
<form name="form1">
<INPUT type=checkbox value=28 name=C3 onclick="disable_text()">
<INPUT type=checkbox value=3 name=C4>
</form>
我要的是
<script>
function disable_text(){
alert(form1.C3.value)
if(form1.C3.checked)
form1.C4.disabled=true
else
form1.C4.disabled=false
}
</script>
<form name="form1">
请问你喜欢什么 ?
<INPUT type=checkbox value=28 name=C3 onclick="disable_text()">水果
<INPUT type=checkbox value=12 name=C3 >其他<br>
喜欢水果的请回答下面?
<INPUT type=checkbox value=3 name=C4>苹果
<INPUT type=checkbox value=4 name=C4>梨子
</form>
就是说我选了水果才能选下面的一道题,要是我选了其他,那么下面的就不能作答
function disable_text(){
if(form1.C3.checked){
form1.C4.disabled=true;
form1.C5.disabled=true;
}
else{
form1.C4.disabled=false;
form1.C5.disabled=false;
}
}
</script>
<form name="form1">
请问你喜欢什么 ?
<INPUT type=checkbox value=28 name=C3 onclick="disable_text()">水果
<INPUT type=checkbox value=12 name=C2 >其他<br>
喜欢水果的请回答下面?
<INPUT type=checkbox value=3 name=C4>苹果
<INPUT type=checkbox value=4 name=C5>梨子
</form>
因为选项太多
要是我要用
同一个名字命名该怎么做呢?
就是说,form里面 的命名还是这样
<form name="form1">
请问你喜欢什么 ?
<INPUT type=checkbox value=28 name=C3 onclick="disable_text()">水果
<INPUT type=checkbox value=12 name=C3 >其他<br>
喜欢水果的请回答下面?
<INPUT type=checkbox value=3 name=C4>苹果
<INPUT type=checkbox value=4 name=C4>梨子
</form>
function disable_text(f){
if(f.checked){
for(var i = 0; i < form1.C4.length; i++){
form1.C4[i].disabled=true;
}
}else{
for(var i = 0; i < form1.C4.length; i++){
form1.C4[i].disabled=false;
}
}
}
</script>
<form name="form1">
What do you like?
<INPUT type=checkbox value=28 name=C3 onclick="disable_text(this)">fruit
<INPUT type=checkbox value=12 name=C3 >others<br>
if like fruit see following
<INPUT type=checkbox value=3 name=C4>apple
<INPUT type=checkbox value=4 name=C4>orange
</form>
function disable_text(obj){
obj.form.C2.disabled=obj.checked
var aDivs = document.body.getElementsByTagName("INPUT");
if(obj.checked)
for(var temp=0;temp<aDivs.length;temp++)
{
if(aDivs[temp].className=="my" && aDivs[temp].type=="checkbox")
aDivs[temp].disabled=false;
}
else
for(var temp=0;temp<aDivs.length;temp++)
{
if(aDivs[temp].className=="my" && aDivs[temp].type=="checkbox"){
aDivs[temp].checked=false;
aDivs[temp].disabled=true;
}
}
}
</script>
<form name="form1">
<INPUT type=checkbox value=28 name="C1" onclick="disable_text(this)">水果
<INPUT type=checkbox name="C2" onclick="this.form.C1.disabled=this.checked">其他
<br>
<INPUT type=checkbox value=1 class="my" disabled>1
<INPUT type=checkbox value=2 class="my" disabled>2
<INPUT type=checkbox value=3 class="my" disabled>3
<INPUT type=checkbox value=4 class="my" disabled>4
<INPUT type=checkbox value=5 class="my" disabled>5
<INPUT type=checkbox value=6 class="my" disabled>6
<INPUT type=checkbox value=7 class="my" disabled>7
<INPUT type=checkbox value=8 class="my" disabled>8</form>
function disable_text(obj){
var aDivs = document.body.getElementsByTagName("INPUT");
if(obj.value=="28")
for(var temp=0;temp<aDivs.length;temp++)
{
if(aDivs[temp].className=="my" && aDivs[temp].type=="checkbox")
aDivs[temp].disabled=false;
}
else
for(var temp=0;temp<aDivs.length;temp++)
{
if(aDivs[temp].className=="my" && aDivs[temp].type=="checkbox"){
aDivs[temp].checked=false;
aDivs[temp].disabled=true;
}
}
}
</script>
<form name="form1">
<INPUT type=radio value=28 name="C1" onclick="disable_text(this)">水果
<INPUT type=radio value=29 name="C1" onclick="disable_text(this)">其他
<br>
<INPUT type=checkbox value=1 class="my" disabled>1
<INPUT type=checkbox value=2 class="my" disabled>2
<INPUT type=checkbox value=3 class="my" disabled>3
<INPUT type=checkbox value=4 class="my" disabled>4
<INPUT type=checkbox value=5 class="my" disabled>5
<INPUT type=checkbox value=6 class="my" disabled>6
<INPUT type=checkbox value=7 class="my" disabled>7
<INPUT type=checkbox value=8 class="my" disabled>8</form>