help w/ javascript 2 php conversion

[Anon]

hello, will someone help me convert this javascript to php. itz a code that change a text to proper vietnamese characters.

tell me how to reconstruct the code below into a function text2viet("string"); in php.. thankx

var viqrData = new Array // Viet VIQR Map
(

// vietchas: = 24 Vowels + d + D

new Array( "a^", "a", "a(", "e^", "e", "i", "o^", "o", "o+", "u", "u+", "y",
"A^", "A", "A(", "E^", "E", "I", "O^", "O", "O+", "U", "U+","Y", "d", "D"),
new Array( "a^'", "a'", "a('", "e^'", "e'", "i'", "o^'", "o'", "o+'", "u'", "u+'", "y'",
"A^'", "A'", "A('", "E^'", "E'", "I'", "O^'", "O'", "O+'", "U'", "U+'", "Y'", "dd", "DD"),
new Array( "a^{", "a",} "a(", "e^", "e", "i", "o^{", "o",} "o+", "u", "u+", "y",
"A^{", "A",} "A(", "E^", "E", "I", "O^{", "O",} "O+", "U", "U+", "Y"),
new Array( "a^?", "a?", "a(?", "e^?", "e?", "i?", "o^?", "o?", "o+?", "u?", "u+?", "y?",
"A^?", "A?", "A(?", "E^?", "E?", "I?", "O^?", "O?", "O+?", "U?", "U+?", "Y?"),
new Array( "a^~", "a~", "a(~", "e^~", "e~", "i~", "o^~", "o~", "o+~", "u~", "u+~", "y~",
"A^~", "A~", "A(~", "E^~", "E~", "I~", "O^~", "O~", "O+~", "U~", "U+~", "Y~"),
new Array( "a^.","a.", "a(.", "e^.","e.", "i.", "o^.", "o.", "o+.", "u.", "u+.", "y.",
"A^.", "A.", "A(.", "E^.", "E.", "I.", "O^.", "O.", "O+.", "U.", "U+.", "Y.")
);

function VIQR2Unicode(txtarea)
{
// These are the main accent chars for viqr used in j
var strTA = txtarea.value; // equal to all the text in the text area
var strTemp = ""; // initialise a temp holder
var curViqrChar;
var uniChar;
var lastPos;
var lastChar;
var strBase;
var blnReplace;
var count = 1;
var lth = accentBase.length;
txtDiv.innerHTML = VIQR2Uni;

// loop through all the characters in the text area
for (var i=0; i < strTA.length; i++) {
	curViqrChar = strTA.charAt(i);	
	if (curViqrChar == '*') (curViqrChar = '+');
	if (curViqrChar == "\n") {	
	   count += 1;				
	   window.status = "Converting Line: " + count;	
   }
   blnReplace = false;
   // loop through all the accents in the accents array
	for (var j=1; (j<lth)&&(!blnReplace); j++) {
		if (curViqrChar == accentBase[j]){	// get the accent
		   lastPos = strTemp.length - 1;		
		   lastChar = strTemp.charAt(lastPos); // in Unicode
			for (var l=0; (l<26)&&(!blnReplace) ; l++) {	
				strBase = String.fromCharCode(uniData[0][l]); 
				if (lastChar == strBase) {	
					uniChar = vowelComposer(l,j,-1);
					if (uniChar != "") {
						strTemp = strTemp.substring(0, lastPos);
						strTemp = strTemp + uniChar;
						blnReplace = true;
						break;
					}
				}
			}
		}
	}
   if (blnReplace == false) strTemp += strTA.charAt(i);	   
}
window.status = "Done";	   

txtarea.value = strTemp;
}