/*********************************************************************************************
 * Author : Jacky Lee                                                                        *
 *                                                                                           *
 * Look at http://jackylee.com  to know more                                                 *
 *                                                                                           *
 * This program is a free software; you can redistribute it and/or modify it.                *
 *                                                                                           *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; *
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. *
 *********************************************************************************************/

var objActive;
function GetActiveText(objHTML) 
{
	var obj=document.getElementById(objHTML);
  if(obj.value == '站內搜尋') {obj.value =''}
	
	objActive=objHTML;
	if(document.selection)
	{
		obj.currPos = document.selection.createRange().duplicate()
	}
}

function InsertText(objHTML,strText,bolReplace) {
	if(strText==""){return("")}
	var obj=document.getElementById(objHTML);
	if(document.selection){
		if (obj.currPos){
			if(bolReplace && (obj.value=="")){
				obj.currPos.text=strText
			}
			else{
				obj.currPos.text+=strText
			}
		}
		else{
			obj.value+=strText
		}
	}
	else{
		if(bolReplace){
			obj.value=obj.value.slice(0,obj.selectionStart) + strText + obj.value.slice(obj.selectionEnd,obj.value.length)
		}
		else{
			obj.value=obj.value.slice(0,obj.selectionStart) + strText + obj.value.slice(obj.selectionStart,obj.value.length)
		}
	}
	//obj.focus();
}

function ReplaceText(objHTML,strPrevious,strNext) {
	var obj=document.getElementById(objHTML);
	var strText;
	if(document.selection && document.selection.type == "Text"){
		if (obj.currPos){
			var range = document.selection.createRange();
			range.text = strPrevious + range.text + strNext;
			return("");
		}
		else{
			strText=strPrevious + strNext;
			return(strText);
		}
	}
	else{
		if(obj.selectionStart || obj.selectionEnd){
			strText=strPrevious + obj.value.slice(obj.selectionStart,obj.selectionEnd) + strNext;
			return(strText);
		}
		else{
			strText=strPrevious + strNext;
			return(strText);
		}
	}
}
//*********************************************************