var $=function(tagName){return document.getElementsByTagName(tagName);}
var $div=function(tagName){
	return document.getElementById(tagName+"_txt");
}
var $val=function(tagName){
	return document.getElementById(tagName);
}
var $inp=function(tagName){
	return document.getElementsByName(tagName);
}
var $sel=function(tagName){
	return document.getElementById(tagName).options[document.getElementById(tagName).selectedIndex];
}


//SELECT表單選取
function CheckSel(Voption,Value)
{
	var obj = document.getElementById(Voption);
	for (i=0;i<obj.length;i++){
		if (obj.options[i].value==Value){
		obj.options[i].selected=true;
		break;
		}
	}
}

//單選表單選取
function chkradio(Obj,Val)
{
	if (Obj)
	{
	for (i=0;i<Obj.length;i++){
		if (Obj[i].value==Val){
		Obj[i].checked=true;
		break;
		}
	}
	}
}


//復選表單全選事件 form：表單名
function CheckAll(form)
  {
  for (var i=0;i<form.elements.length;i++)
	{
	var e = form.elements[i];
	if (e.Name != "chkAll")
	   e.checked = form.chkAll.checked;
	}
  }

function unselectall()
{
	if(document.del.chkAll.checked){
	document.del.chkAll.checked = document.del.chkAll.checked&0;
	} 	
}

function ConfirmDel(formObj)
{
   if(confirm("確定要刪除選中的標題嗎？一旦刪除將不能恢復！")){
	eval(formObj).submit();
	return true;
   }else{
	 return false;}
}

  function   power_chkll(id){   
  var   oEvent   =   document.all(id);   
  var   chks   =   oEvent.getElementsByTagName("INPUT");   
  oEvent.power_id_   =   !oEvent.power_id_;   
  if   (oEvent.power_id_){   
  for   (i=0;i<chks.length;i++){   
  chks[i].checked=true;   
  }   
  }   else{   
  for   (i=0;i<chks.length;i++){   
  chks[i].checked=false;   
  }   
  }   
  }

  //變動下拉的默認項目
function setSel(str,formname){
for(var i=0;i<formname.options.length;i++){                
	if (formname.options[i].text==str){
		formname.selectedIndex=i;
		break;
	}
}            

}
//變動下拉的默認項目2
function setSel2(str,formname){
for(var i=0;i<formname.options.length;i++){  
	
	if (formname.options[i].value==str){
		formname.selectedIndex=i;
		break;
	}
}            

}
//更新下拉
function fillSel(strsel,formname){
	formname.options.length=0;
	formname.options[0] = new Option(strsel,"0");
	formname.selectedIndex = 0;
}

//插入下拉
function addOption(pos,formname){    
			// 取得字段值   
			var strName = "請選擇...";   
			var strValue = "0";   
			// 建立Option對象   
			var objOption = new Option(strName,strValue);   
			if (pos == -1 & pos > formname.options.length)   
						formname.options[formname.options.length] = objOption;   
			else   
						formname.add(objOption, pos);   
}




function postinfos(str_infos,str_urls,str_nowobj,str_nextobj){
	var xmlhttp;
	try{
		xmlhttp=new XMLHttpRequest();
		}
	catch(e){
		xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
		}
	xmlhttp.onreadystatechange=function(){
	if (xmlhttp.readyState==4){
		if (xmlhttp.status==200){
			var data=xmlhttp.responseText;
			results(data,str_nowobj,str_nextobj);	
			}
		else{
			fillSel("傳輸失敗！",$val(str_nextobj));
			$div(str_nextobj).innerHTML="<img src='images/reg_yesno.gif' alt='文件傳輸失敗！'>";
			}
		}
	else{
		fillSel("正在刷新...",$val(str_nextobj));
		$div(str_nextobj).innerHTML="<img src='images/loading.gif' alt='正在刷新...'>";
		}
	}
	var url = str_urls + "?timeStamp=" + new Date().getTime();
	xmlhttp.open("post", url, true);
	xmlhttp.setRequestHeader('Content-type','application/x-www-form-urlencoded; charset=gb2312');
	xmlhttp.send(str_infos);	
}
function results(data,str_nowobj,str_nextobj){	
	var pronames
	var data_arr
	if(data!="0"){
		data = data.split('%%');
		$val(str_nextobj).options.length=0;
		$val(str_nextobj).options[0] = new Option("請選擇...","0");
		for(data_i=0;data_i<data.length;data_i++){
			data_arr=data[data_i];
			data_arr=data_arr.split('||');
			$val(str_nextobj).options[data_i+1] = new Option(data_arr[1],data_arr[0]);
			}
		$val(str_nextobj).selectedIndex = data_i;
		
		//setSel(opt0[0],$val(str_nextobj))
		$div(str_nextobj).innerHTML="<img src='images/reg_yesok.gif' alt='列表更新成功！'>";
		if   (typeof(checkdef)=="function"){
			checkdef(str_nextobj);
		}else{
			$val(str_nextobj).options[0].selected = true;
		}
	}else{
		fillSel("列表為空...",$val(str_nextobj));
		$div(str_nextobj).innerHTML="<img src='images/reg_yesno.gif' alt='列表為空，請添加相關類別！'>";
	}
}





function delRow(sIndex){
	$val("idTB").deleteRow(sIndex);
	$val("idFirst").innerText=idTB.rows.length-1;

}

function setRow(){
	var setrows=$val("idFirst").value;
	if (setrows>0&&setrows<101){
	var setrows=$val("idFirst").value*1+1;
	var nowrows=$val("idTB").rows.length*1;
	var rownum1=setrows-nowrows;
	var rownum2=nowrows-setrows;
		if (rownum1>0){
			for (i=0;i< setrows-nowrows;i++ ){
				addRow();
			}
		}else if (rownum2>0){
			for (i=0;i<rownum2;i++ ){
				delRow(nowrows-1-i);
			}
		}else if (rownum2==0){
			return false;
		}
	}else{
		alert('錯誤：行數設定限制為0-100行！');
	}
	window.location.href="#bottom";
}