<script language="JavaScript">
function chkall(input1,input2)
{
var objForm = document.forms[input1];
var objLen = objForm.length;
for (var iCount = 0; iCount < objLen; iCount++)
{
if (input2.checked == true)
{
if (objForm.elements[iCount].type == "checkbox")
{
objForm.elements[iCount].checked = true;
}
}
else
{
if (objForm.elements[iCount].type == "checkbox")
{
objForm.elements[iCount].checked = false;
}
}
}
}
</script><form id="form1">
<input type="checkbox" value='全部選取' onclick='chkall("form1",this)' name=chk><BR>
<input type="checkbox" name="item_001" value="1">1<BR>
<input type="checkbox" name="item_002" value="2">2<BR>
<input type="checkbox" name="item_003" value="3">3<BR>
<input type="checkbox" name="item_003" value="4">4
</form>
<SCRIPT LANGUAGE="JavaScript">
function ck(b)
{
var input = document.getElementsByTagName("input"); for (var i=0;i<input.length ;i++ )
{
if(input[i].type=="checkbox")
input[i].checked = b;
}
}
</SCRIPT>
<INPUT TYPE="checkbox" NAME="a">1
<INPUT TYPE="checkbox" NAME="a">2
<INPUT TYPE="checkbox" NAME="a">3
<INPUT TYPE="checkbox" NAME="a">4
<INPUT TYPE="checkbox" NAME="a">5<BR>
<input type="button" onclick="ck(true)" value="全选"><input type="button" onclick="ck(false)" value="取消全选">
function $N(name){return document.getElementsByTagName(name);}
function checkall(v,name){//v当前要设置的值true/false;name要设置的checkbox组的name,如果省略则默认为所有的checkbox
o=name?$N(name):$N("input");
for(i=0;i<o.length;i++) if(o[i].type=="checkbox")o[i].checked=v;
}
function setstatus(o){
var status = o.value=="全选"
o.value=status?"取消":"全选"
checkall(status);
}
</SCRIPT>
<INPUT TYPE="checkbox" NAME="a">1
<INPUT TYPE="checkbox" NAME="a">2
<INPUT TYPE="checkbox" NAME="a">3
<INPUT TYPE="checkbox" NAME="a">4
<INPUT TYPE="checkbox" NAME="a">5<BR>
<input type="button" onclick="setstatus(this)" value="全选">
function $N(name){return document.getElementsByName(name);}
function $TN(name){return document.getElementsByTagName(name);}
function checkall(v,name){//v当前要设置的值true/false;name要设置的checkbox组的name,如果省略则默认为所有的checkbox
o=name?$N(name):$TN("input");
for(i=0;i<o.length;i++) if(o[i].type=="checkbox")o[i].checked=v;
}
function setstatus(o){
var status = o.value=="全选"
o.value=status?"取消":"全选"
checkall(status,'a');
}
</SCRIPT>
<INPUT TYPE="checkbox" NAME="b">1
<INPUT TYPE="checkbox" NAME="b">2
<INPUT TYPE="checkbox" NAME="a">3
<INPUT TYPE="checkbox" NAME="a">4
<INPUT TYPE="checkbox" NAME="a">5<BR>
<input type="button" onclick="setstatus(this)" value="全选">
<SCRIPT LANGUAGE="JavaScript">
function ck()
{
var b = document.getElementById("cb").value
var input = document.getElementById("cbdiv").getElementsByTagName("input"); for (var i=0;i<input.length ;i++ )
{
if(input[i].type=="checkbox")
input[i].checked = b==0?true:false;
}
document.getElementById("cb").value = b==0?1:0;
}
function clk(e)
{
var obj = e.target||window.event.srcElement;
if(obj.tagName.toUpperCase()=="INPUT" && obj.type.toUpperCase()=="CHECKBOX")
{
setcb();
}
}
function setcb()
{
var b = 1;
var input = document.getElementById("cbdiv").getElementsByTagName("input");
for (var i=0;i<input.length ;i++ )
{
if(input[i].type=="checkbox")
{
if(!input[i].checked)
{
b = 0;
break;
}
}
}
document.getElementById("cb").value = b;
}
</SCRIPT>
<body onload="setcb()">
<div id=cbdiv onclick="clk(event)">
<INPUT TYPE="checkbox" NAME="a">1
<INPUT TYPE="checkbox" NAME="a">2
<INPUT TYPE="checkbox" NAME="a">3
<INPUT TYPE="checkbox" NAME="a">4
<INPUT TYPE="checkbox" NAME="a">5<BR>
<input type="button" onclick="ck()" value="全选/取消全选">
<input type="hidden" id="cb" value="">
</div>
</body>
function checkAll(argu){
var obj = document.getElementsByName("checkBox"); for(var i= 0;i<obj.length;i++){
obj[i].checked = argu.checked;
}
}
</script><td>
<input type="checkBox" name="checkBoxs" onClick="checkAll(this)">全选(反选)
</td>
{
for (var i=0;i<form.elements.length;i++)
{
var e = form.elements[i];
if (e.name != 'chkall')
{
e.checked = form.chkall.checked;
}
}
}