Bengali Number to English Number converter Javascript

begnaliToEnglisNumbers.js

/*
*
*
*    Input any number in Bengali and the following function will return the English number.
*
*/

function bn2en(myNumber){
	function replacef(replaceString) {
		switch (replaceString) {
			case "০":
			replaceString = 0;
			break;
			case "১":
			replaceString = 1;
			break;
			case "২":
			replaceString = 2;
			break;
			case "৩":
			replaceString = 3;
			break;
			case "৪":
			replaceString = 4;
			break;
			case "৫":
			replaceString = 5;
			break;
			case "৬":
			replaceString = 6;
			break;
			case "৭":
			replaceString = 7;
			break;
			case "৮":
			replaceString = 8;
			break;
			case "৯":
			replaceString = 9;
		}
		
		return replaceString;
	}
	var getVal = myNumber;
	var bnNum = getVal.split("");
	var myNum = [];
	for(var i = 0; i < bnNum.length; i++ ){
		myNum.push(replacef(bnNum[i]));
	}
	return myNum.join("");
}


// bn2en('০১২৩৪৫৬৭৮৯'); 
// output 01234567890