function is_MelliCode(meli_code){
	if (meli_code.length == 10){
		if(meli_code=='1111111111'||meli_code=='0000000000'||meli_code=='2222222222'||meli_code=='3333333333'||meli_code=='4444444444'||
		   meli_code=='5555555555'||meli_code=='6666666666'||meli_code=='7777777777'||meli_code=='8888888888'||meli_code=='9999999999' ){
				return false;
		}
		c = parseInt(meli_code.charAt(9));
		n = parseInt(meli_code.charAt(0))*10 + parseInt(meli_code.charAt(1))*9 + parseInt(meli_code.charAt(2))*8 + parseInt(meli_code.charAt(3))*7 +
			parseInt(meli_code.charAt(4))*6 + parseInt(meli_code.charAt(5))*5 + parseInt(meli_code.charAt(6))*4 + parseInt(meli_code.charAt(7))*3 + parseInt(meli_code.charAt(8))*2;
		r = n - parseInt(n/11)*11;
		if ((r == 0 && r == c) || (r == 1 && c == 1) || (r > 1 && c == 11 - r)){
			return true;
		}else{
			return false;
		}
	}else{
		return false;
	}
}