function setChoice(iNum) { var oForm = document.forms["uForm1"]; oForm.camera[iNum].checked = true; }

for (j = 0; j < objarray; j++) {
if (str[j].checked == true) {
chestr += str[j].value + ",";
}
}
if (chestr == "") {
alert("请先选择一个爱好～！");
} else {
alert("您先择的是：" + chestr);
}
}

function changeBoxes(action) { var oForm = document.forms["myForm1"]; var oCheckBox = oForm.hobby; for (var i = 0; i < oCheckBox.length; i++) //遍历每一个选项 if (action < 0) //反选 oCheckBox[i].checked = !oCheckBox[i].checked; else //action为1是则全选，为0时则全不选 oCheckBox[i].checked = action; }