js 检测是不是有选择多选框的至少一项

js 检测是否有选择多选框的至少一项

  //检测是否有选择多选框的至少一项 function chkCheckBoxChs(){ var obj = document.getElementsByName("chkIds");var objLen= obj.length; var str="";var objYN=false; for (var i = 0;i< objLen;i++){if (obj [i].checked==true) {    objYN= true;    break;}}return objYN;}

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