var ArrayTmp	=new Array			// Viet Unicode Map
(
192,193,194,
195,200,201,202,204,205,210,211,212,213,217,218,221,224,225,
226,227,232,233,234,236,237,242,243,244,245,249,250,253,258,
259,272,273,296,297,360,361,416,417,431,432,7840,7841,7842,
7843,7844,7845,7846,7847,7848,7849,7850,7851,7852,7853,7854,
7855,7856,7857,7858,7859,7860,7861,7862,7863,7864,7865,7866,
7867,7868,7869,7870,7871,7872,7873,7874,7875,7876,7877,7878,
7879,7880,7881,7882,7883,7884,7885,7886,7887,7888,7889,7890,
7891,7892,7893,7894,7895,7896,7897,7898,7899,7900,7901,7902,
7903,7904,7905,7906,7907,7908,7909,7910,7911,7912,7913,7914,
7915,7916,7917,7918,7919,7920,7921,7922,7923,7924,7925,7926,
7927,7928,7929
);
var isoData	=	new Array
(
"À","Á","Â",
"Ã","È","É","Ê","Ì","Í","Ò","Ó","Ô","Õ","Ù","Ú","Ý","à","á",
"â","ã","è","é","ê","ì","í","ò","ó","ô","õ","ù","ú","ý","Ă",
"ă","Đ","đ","Ĩ","ĩ","Ũ","ũ","Ơ","ơ","Ư","ư","Ạ","ạ","Ả",
"ả","Ấ","ấ","Ầ","ầ","Ẩ","ẩ","Ẫ","ẫ","Ậ","ậ","Ắ",
"ắ","Ằ","ằ","Ẳ","ẳ","Ẵ","ẵ","Ặ","ặ","Ẹ","ẹ","Ẻ",
"ẻ","Ẽ","ẽ","Ế","ế","Ề","ề","Ể","ể","Ễ","ễ","Ệ",
"ệ","Ỉ","ỉ","Ị","ị","Ọ","ọ","Ỏ","ỏ","Ố","ố","Ồ",
"ồ","Ổ","ổ","Ỗ","ỗ","Ộ","ộ","Ớ","ớ","Ờ","ờ","Ở",
"ở","Ỡ","ỡ","Ợ","ợ","Ụ","ụ","Ủ","ủ","Ứ","ứ","Ừ",
"ừ","Ử","ử","Ữ","ữ","Ự","ự","Ỳ","ỳ","Ỵ","ỵ","Ỷ",
"ỷ","Ỹ","ỹ" );
function KTCode(so){
		var first=0,last=147,mid=0,val;
		var kt=false;
		while((!kt)&&(last>=first)){
			mid 	=	Math.floor((last+first)/2);
			val		= 	ArrayTmp[mid];
			if(so	==	val){
				kt  = true;
				break;
			}else
				if(so>val)
					first	=	mid		+	1;
				else
					last	=	mid		-	1;
			if((so>ArrayTmp[last])||(so<ArrayTmp[first])){
				kt=false;
				break;
			}
		}
		return (kt==false)?0:mid;
}
function sortNumber(a, b){
	return a - b
}

function Unicode2ISO(txtarea)	{
	var strTA = txtarea.value;
	var strTemp = "";
	var curUniChar;
	var chrReplace;
	var blnReplace;
	var count = 1;
	var strDec;
	var k;

   for (var i=0; i < strTA.length; i++) {
			curUniChar = strTA.charAt(i);
			blnReplace = false;
			k	=	parseInt(KTCode(strTA.charCodeAt(i)));
			if(k!=0){
								 count 				+= 1;    
								 //window.status 		= "Converting char: " + count;
								 strDec 			= 	ArrayTmp[k];           
								 if (curUniChar 	== 	String.fromCharCode(strDec))  {	
									 chrReplace 	= 	isoData[k];	
									 blnReplace 	= 	true;
								 }
			}
				(blnReplace == true)? (strTemp += chrReplace) : (strTemp += curUniChar);
	}
	//window.status = "Converting Complete 100%" ;
	//txtarea.value = strTemp;
	return strTemp;
}
function codau2kodau(txtarea){
	//var strTA = txtarea.value;
	var strTA = txtarea;
	var strTemp = "";
	var curUniChar;
	var chrReplace;
	var blnReplace;
	var count = 1;
	var strDec;
	var k;

   for (var i=0; i < strTA.length; i++) {
			   curUniChar = strTA.charAt(i);
			   blnReplace = false;
			k	=	parseInt(KTCode(strTA.charCodeAt(i)));
			if(k!=0){
								 count 				+= 1;    
								 //window.status 		= "Converting char: " + count;
								 strDec 			= 	ArrayTmp[k];           
								 if (curUniChar 	== 	String.fromCharCode(strDec))  {	
									 chrReplace 	= 	chuyenfont[k];	
									 blnReplace 	= 	true;
								 }
			}
				(blnReplace == true)? (strTemp += chrReplace) : (strTemp += curUniChar);
	}
	//window.status = "Converting Complete 100%" ;
	//txtarea.value = strTemp;
	return strTemp;

}

var chuyenfont	=new Array			// Viet Unicode Map
(
"A","A","A",
"A","E","E","E","I","I","O","O","O","O","U","U","Y","a","a",
"a","a","e","e","e","i","i","o","o","o","o","u","u","y","A",
"a","D","d","I","i","U","u","O","o","U","u","A","a","A",
"a","A","a","A","a","A","a","A","a","A","a","A",
"a","A","a","A","a","A","a","A","a","E","e","E",
"e","E","e","E","e","E","e","E","e","E","e","E",
"e","I","i","I","i","O","o","O","o","O","o","O",
"o","O","o","O","o","O","o","O","o","O","o","O",
"o","O","o","O","o","U","u","U","u","U","u","U",
"u","U","u","U","u","U","u","Y","y","Y","y","Y",
"y","Y","y"
);