驗證只輸入時間的腳本和文本選中js腳本（兼容firefox）

<form id="form1" name="form1" method="post" action="">
  <input type="text" name="houript" id="houript" style="width:25px" onKeyUp="value=value.replace(/[^/d]/g,'');" value="" size="18" maxLength="2" onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^/d]/g,''))"/>
  <strong>:</strong>
  <input type="text" name="secondipt" id="secondipt" style="width:25px" onKeyUp="value=value.replace(/[^/d]/g,'');checksecond(this);" value="" size="18" maxLength="2" onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^/d]/g,''))"/>
 
  <input type="button" name="ddd" value="dddd"  οnclick='checktimeinput("houript","secondipt")'/>
</form>

<script language="javascript" type="text/javascript">
var hour_ok=false;
var second_ok=false;
function checkhour(ele){
  if(ele.value==""){
   alert("請輸入小時！");
   ele.focus();
   selectThisText(ele);
  }else if(!check_int(ele.id)||parseInt(ele.value)<0||parseInt(ele.value)>23){
   alert("請輸入0~23的數字");
   ele.focus();
   selectThisText(ele);
  }else
   hour_ok=true;
}
function checksecond(ele){
  if(ele.value==""){
   alert("請輸入分鐘！");
   ele.focus();
  }else if(!check_int(ele.id)||parseInt(ele.value)<0||parseInt(ele.value)>23){
   alert("請輸入0~59的數字");
   ele.focus();
  }else
   second_ok=true;
}
function checktimeinput(hour,second){
   var h_e=gid(hour);
   var s_e=gid(second);
  checkhour(h_e);
  if(hour_ok==false) return false;
  checksecond(s_e);
  if(second_ok==false) return false;
  return true;
}

function selectThisText(element){
  if(window.getSelection){
   var txt=element.value;
   element.setSelectionRange(0,txt.length);
  }else{
 
 var range=element.createTextRange();
 // range.moveToElementText(element);
  range.select();
  }
}