function addRow(id){
	//add detail length
	var o_lengthDetail = document.frmSong_Detail.lengthDetail;
	var item = parseInt(o_lengthDetail.value) + 1;
	o_lengthDetail.value = item;
	//alert(item);
	//add row	
    var tbody		= document.getElementById(id).getElementsByTagName("TBODY")[0];
    var row			= document.createElement("TR");    
	var TD_Item2	= document.createElement("TD");
	var TD_Item3	= document.createElement("TD");
	var TD_Item4	= document.createElement("TD");
	TD_Item3.appendChild(createInput("txtSongLyric1"+item, "", "40", "", "textInput", "text","" ,"setObj(frmSong_Detail, this)",""));
	TD_Item4.appendChild(createInput("txtSongLyric2"+item, "", "40", "", "textInput", "text","" ,"setObj(frmSong_Detail, this)",""));
	/*TD_Item3.appendChild(newObj("txtSongLyric1"+item
				, "txtSongLyric1"+item
				, ""
				, "40"
				, ""
				, "textInput"
				, "text"
				, ""
				, "setObj(frmSong_Detail, this)"
				, ""
				, ""));
	
    var TD_Item4	= document.createElement("TD");
	TD_Item4.appendChild(newObj("txtSongLyric2"+item
				, "txtSongLyric2"+item
				, ""
				, "40"
				, ""
				, "text"
				, "text"
				, "" 
				, "setObj(frmSong_Detail, this)"
				, ""
				, ""));
	*/
	row.appendChild(TD_Item2);
	row.appendChild(TD_Item3);
	row.appendChild(TD_Item4);
	
	tbody.appendChild(row);
}

function checkArreyEmpty(children){
	if(children[1] == null){//not array
		children = new Array(children);//make to array
	}
	
	for(i=0; i < children.length; i++){
		alert(children[i].value);
		//children[i].checked = parent.checked;
	}	
}

function insertKey(obj) {	
		if(isEmpty(obj.detailName.value)) {
			alert("Please choose a pleace for inserting !");
			return false;
		}

		var nameText = obj.detailName.value;
		var temp = nameText.substr(0,12);
		if(temp.toUpperCase() != "TXTSONGLYRIC"){
			alert("Please choose a pleace for inserting !");
			return false;	
		}

		var cord = chooseCord(obj);

		cmd = "obj."+obj.detailName.value+".focus();";
		eval(cmd);

        sel = document.selection.createRange();
        sel.text = cord;

		objForm.detailName.value = "";
}

function setObj(objForm, objThis){
	objForm.detailName.value = objThis.name;	
}

function chooseCord(obj){
	if(obj.optKeyYes.value == "Major"){
		return "<" + obj.optKeyNo.value + ">";
	}else{
		return "<" + obj.optKeyNo.value + obj.optKeyYes.value + ">";		
	}
	
}

function popupSongDetail(frmObj, songid){	
	if(isEmpty(songid)) {
		alert("Have no song select !");
		return false;
	}	
	
	lang1 = frmObj.opt_lang1.value;
	lang2 = frmObj.opt_lang2.value;
	var win = window.open("../php/song_detail_popup.php?songid="+songid+"&lang1="+lang1+"&lang2="+lang2,'songdetail',		'toolbar=no,directories=no,status=no,menubar=no,resizable=yes,scrollbars=yes,width=800,height=600,left=0,top=100');
	win.focus();
}