JavaScript判断一组单选或复选按钮至少一个被选中

//判断某个单选或复选按钮是否被选中至少一个function isChecked(chkName){var cps = document.getElementsByName(chkName);var chk = false;for(var i=0;i<cps.length;i++){chk = chk || cps[i].checked;if(chk){break;}}return chk}