function checkAll()
{
for (var i=0;i<document.Form1.elements.length;i++)
{
var e = document.Form1.elements[i];
if (e.name == "a1" & e.name == "a2" & e.name == "a3" ) e.checked = checked;
}
}
具体到你的应用,改改就可以了
{
for (var i=0;i<document.Form1.elements.length;i++)
{
var e = document.Form1.elements[i];
if (e.name == "a1" & e.name == "a2" & e.name == "a3" ) e.checked = checked;
}
}
具体到你的应用,改改就可以了
<input type="checkbox" name="a2" value="a2">
<input type="checkbox" name="a3" value="a3">
<input type="checkbox" name="a4" value="a4">
<input type="button" onclick="selall()" value="全选">
<script>
function selall()
{
var start = 1;
var end = 4;
for(var i=start;i<=end;i++)
{
eval("document.all.a"+i+".checked=true")
}
}
</script>